EP2884318B1 - Dispositif de chauffage de renfort pour partie de connexion de fibre optique - Google Patents

Dispositif de chauffage de renfort pour partie de connexion de fibre optique Download PDF

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Publication number
EP2884318B1
EP2884318B1 EP14776315.5A EP14776315A EP2884318B1 EP 2884318 B1 EP2884318 B1 EP 2884318B1 EP 14776315 A EP14776315 A EP 14776315A EP 2884318 B1 EP2884318 B1 EP 2884318B1
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EP
European Patent Office
Prior art keywords
force
optical fiber
cam mechanism
sleeve
clamps
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Application number
EP14776315.5A
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German (de)
English (en)
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EP2884318A4 (fr
EP2884318A1 (fr
Inventor
Noriyuki Kawanishi
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Fujikura Ltd
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Fujikura Ltd
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Publication of EP2884318A4 publication Critical patent/EP2884318A4/fr
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2558—Reinforcement of splice joint
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2553—Splicing machines, e.g. optical fibre fusion splicer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2555—Alignment or adjustment devices for aligning prior to splicing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/023—Industrial applications

Definitions

  • the present invention related to an optical-fiber-spliced portion reinforcing heating device.
  • the outer side of the sleeve used to reinforce the optical fiber spliced portion is formed of a heat shrinkable tube, a hot melt disposed inside thereof is molded at the circumference of the optical fiber, and the spliced portion is thereby protected.
  • the sleeve formed by the outer heat shrinkable tube and the inner hot melt is heat-shrinkable depending on various coating diameters of the optical fiber.
  • the sleeve is molded while extruding air inside the sleeve from the sleeve center to the outside thereof.
  • the optical fiber spliced portion that is reinforced by the above-described sleeve also has a function of blocking an external substance such as moisture which adversely affects an optical fiber.
  • a stainless-steel tensile strength member is inserted into the sleeve in advance in the case of a single-core optical fiber and a glass tensile strength member is inserted into the sleeve in advance in the case of a multi-core ribbon, and a structure that resists bending or tension is thereby realized.
  • shrinking can be carried out at high speed such as approximately 30 seconds by use of an optical-fiber-spliced portion reinforcing heating device which is conventionally mounted on an optical fiber fusion splicer.
  • polyimide film heaters which are adhesively attached to a metal sheet and serve as a heater provided on an optical-fiber-spliced portion reinforcing heating device (hereinbelow, may be referred to as a reinforcing heating device); and a heater is proposed as an example having single flat sheet heater into which two or more heaters circuit patterns are implanted (for example, refer to Patent Documents 1 and 2).
  • a plurality of heater circuit patterns are implanted into a flat sheet heater.
  • a clamp is provided at a reinforcing heating device.
  • a clamp provided with a tension applying mechanism is known, and by using this, an optical fiber is prevented from going slack in the sleeve.
  • the clamp is an essential and necessary configuration to prevent arrayed bare optical fibers from coming in contact with each other.
  • the optical fibers adjacent to each other shrink in a state of being in contact with each other, damaging both optical fibers, and therefore, the long-term reliability of the optical fiber is decreased.
  • a reinforcing heating device used for multi-core tape fibers in which clamps are arranged at both sides of the heater in the longitudinal direction of the optical fiber, one of the clamps is configured to slidably move in the longitudinal direction of the optical fiber, and a compression coil spring is provided (for example, refer to Patent Document 4).
  • an optical fiber is set in a state in which right and left clamps are opened, the movable left clamp is only closed, subsequently, the optical fiber is pulled in the right direction, and the right clamp is closed in a state in which a compression coil spring is contracted.
  • the shrinkage of the compression coil spring is designed to generate optimal tension in the optical fiber at the position at which the movable left clamp is brought into contact with the right end of the movable range, and the optimal tension of the compression coil spring is always applied to the optical fiber.
  • shrinkage of a compression coil spring is designed to cause an optical fiber to generate an optimal tension at the position with which the left clamp is brought into contact in the right direction.
  • the optical fiber is set to the clamp in a state of being pressed with the finger, the movable left clamp and the fixed right clamp are closed.
  • FIG. 1 or the like shown in Patent Document 5 a right clamp is movable and a left clamp is fixed.
  • the movable clamp is generally pressed onto a heater side by a tension coil spring.
  • such mechanism applying tension to an optical fiber is mainly mounted on a reinforcing heating device used for a multi-core optical fiber.
  • a fusion-spliced optical fiber may be damaged due to the work operation therefor. Therefore, in the case where, for example, a tension is 200 gf under a rupture evaluation test after the optical fibers are spliced, it is recommended to be less than or equal to 30 gf.
  • the amount of time of fusion-splicing is less than or equal to 10 seconds; however, an amount of time of 25 seconds or more is required for heat shrinking.
  • Patent Document 6 a mechanism is provided which absorbs a tension by use of a compression coil spring when the tension is applied to an optical fiber by pressing by a heater.
  • the total pressing force due to a heater is required to be less than or equal to 10 to 100 gf.
  • the allowable tension is less than or equal to approximately 30 gf, and the pressing force due to a heater is required to be less than or equal to 30 gf.
  • Patent Document 6 it is not possible to increase the pressing force of the heater to be greater than the allowable residual tension of the optical fiber.
  • the hard core is made of glass, it does not function.
  • a constitution which serves as a device of heat-reinforcing an optical fiber spliced portion, includes: a means of driving a heater by use of using a motor or the like; and a means of detecting that the heater moves forward to a predetermined position, i.e., a position where the sleeve is shrunk, and is configured to retreat after the heater moves forward to the sleeve position and the heater reaches a predetermined position (for example, refer to Patent Document 8).
  • Patent Document 8 two heaters press the sleeve, the area of contact between the sleeve and the heater increases, and it is possible to speed up the heat shrinking of the sleeve.
  • the heat conduction efficiency due to the heater becomes higher, it is possible to shorten the heat shrinking time of the sleeve.
  • the inventor intensively researched how degree of the pressing force is applied to the sleeve so as to be deformed in order to shorten the heat shrinking time to be shortest; it is apparent that the pressing force of 500 gf to press the sleeve by the heater is required when the sleeve is heat-shrunk.
  • FIG. 30 is a chart showing a case where a commonly-used sleeve of 60 mm which is used for single core is sandwiched between two heaters and heating is carried out at a temperature of 230°C of both two heaters where one of the heaters is fixed and the other of the heaters is movable.
  • the aforementioned changing point of approximately 500 gf varies with the sleeve structure.
  • the variation in the shrinking time reduces when the pressing force exceeds approximately 500 gf.
  • the heater moves forward by a motor through a micrometer, it is necessary for the amount of the forward movement and the forward velocity thereof to control depending on a state in which a sleeve is contracted.
  • the amount of forward movement and the forward velocity vary depending on, for example, difference in the diameter or the material thereof.
  • a contractile rate of the sleeve varies depending on an outdoor temperature or a voltage of a built-in battery.
  • the contractile rate of the center portion thereof is different from that of the outer-edge portion thereof.
  • Patent Document 8 also discloses the constitution in which the cam is disposed between right-and-left arranged heaters, each heater is pressed by the elastic member such as a spring, and the heater is pressed onto a heat shrinkable sleeve by rotating the cam using a motor.
  • FIG. 32 (a) shows a state shortly after a sleeve 312 is set between two heaters 321 and 322 and before heating is started.
  • an optical fiber 311 provided inside the sleeve 312 is located on the center line S indicated by a dashed-dotted line.
  • the position of the optical fiber 311 is held and fixed by clamps which are positioned in front of and at the rear side of the heaters 321 and 322 and not shown in the figure.
  • a cam 323 rotates, the two heaters 321 and 322 are pressed onto the sleeve 312 by forces of compression coil springs 324 and 325, and heating of the heaters 321 and 322 is thereby started.
  • the cam 323 does not come into contact with movable tables 321A and 322A, and the sleeve 312 is pressed by the forces of the compression coil springs 324 and 325.
  • the pressing forces of the right-and-left arranged compression coil springs 324 and 325 in the drawing are not the same as each other, the sleeve 312 does not stay on the center line S, and it is difficult for the two compression coil springs 324 and 325 to be always located at the same position while being continuously balanced for a long period of time.
  • the compression coil springs 324 and 325 are located near the side of any one thereof due to a difference in force between the compression coil springs.
  • the force of approximately 500 gf by which the sleeve is pressed is extremely larger than the tension of approximately 30 gf which can be applied to the above-described post-fusion-spliced optical fiber, this force is two or more times the tension of 200 gf under the rupture evaluation test, and therefore, there is a concern that the optical fiber is broken at the moment at which the pressing force is applied thereto.
  • the heaters 321 and 322 are configured to be longer in the vertical direction thereof in consideration of the case where the position of the sleeve 312 is displaced downward; however, as the heaters 321 and 322 are larger in size, the heat capacity thereof increases, and there is a problem in that the rate of temperature increase decreases.
  • the invention was made with respect to the above-described problems and has an object to provide an optical-fiber-spliced portion reinforcing heating device according to claim 1 which prevents an excessive tension from being applied to an optical fiber and thereby prevents the optical fiber from being broken or prevents the long-term reliability thereof from being degraded, which has a high level of handleability in addition to prevention of the device from being larger in size, and which can heat-shrink a sleeve in a short amount of time.
  • the invention provides an optical-fiber-spliced portion reinforcing heating device according to claim 1.
  • a configuration may also be adopted in which, in two or more cam mechanisms used in the first cam mechanism and the third cam mechanism which are rotationally driven by the same motor, a rotating drive force by the drive source is reduced by determining a timing of combining a positive driving that needs a rotary drive torque and a negative driving that receives a torque to be diminished.
  • a configuration may also be adopted in which, in at least one of two or more cam mechanisms used in the first cam mechanism and the third cam mechanism, an auxiliary movable member is disposed on the opposite side of each operation member with the camshaft interposed therebetween, each operation member is coupled to the auxiliary movable member by use of one of an elastic member and a magnetic member, a rotary drive torque of each cam mechanism is reversed from positive driving to negative driving as a result of displacing the auxiliary movable member instead of each operation member in accordance with a motion of each cam mechanism, and the positive driving and the negative driving are thereby combined and diminished in the two or more cam mechanisms.
  • a configuration may also be adopted in which, regarding the paired right and left clamps and the heaters, one of them is movable, and the other of them is fixed.
  • a configuration may also be adopted which includes: a first force-applying member that presses at least one of the clamps so as to apply a tension to the optical fiber by use of one of an elastic member and a magnetic member; and a mechanism that controls pull of the optical fiber, which is due to tensions of the clamps by the first force-applying member, based on operation of grasping the optical fiber by the clamps or operation of pressing the sleeve by the heaters, wherein the same motor controls the clamps or the heaters by the force of each of the force-applying members by use of the first and third cam mechanisms and control the tension mechanism by operating the controlled clamps or the controlled heaters.
  • a configuration may also be adopted which includes: a first force-applying member that presses at least one of the clamps so as to apply a tension to the optical fiber by use of one of an elastic member and a magnetic member; a position limiting member that is configured of a forward movement stopper or a backward movement stopper, which limits a forward movable range or a backward movable range of at least one of the paired right and left clamps; a second cam mechanism that is to be rotationally driven by the motor control, the second cam mechanism being disposed on the same camshaft as those of the first and third cam mechanisms or disposed on the other camshaft parallel to the camshaft; a mechanism in which displacement of the second cam mechanism controls pull of the optical fiber, which is due to tensions of the clamps by the first force-applying member; and a mechanism in which displacement of the second cam mechanism controls movement of the position limiting member, wherein the same motor controls the clamps and the heaters by the first to third cam mechanisms.
  • a configuration may also be adopted which includes: a first force-applying member that presses at least one of the clamps so as to apply a tension to the optical fiber by use of one of an elastic member and a magnetic member; a third force-applying member that presses to apply a tension in an opposite direction relative to the first force-applying member; a sixth cam mechanism that is to be rotationally driven by the motor control, the second cam mechanism being disposed on the same camshaft as those of the first and third cam mechanisms or disposed on the other camshaft parallel to the camshaft; and a mechanism in which displacement of the sixth cam mechanism controls an applied force of the first force-applying member or the third force-applying member, wherein each of the first and third force-applying members presses at least one of the clamps so as to apply a tension to the optical fiber by use of one of an elastic member and a magnetic member, and the same motor controls the clamps, the heaters, and the applied force controller by the first, third,
  • a configuration may also be adopted which includes: a lid that opens and closes the optical-fiber-spliced portion reinforcing heating device; a sixth force-applying member that applies a force of closing the lid thereto by use of one of an elastic member and a magnetic member; a fourth cam mechanism that is disposed on the same camshaft as those of the first and third cam mechanisms or disposed on the other camshaft parallel to the camshaft; and a mechanism in which displacement of the fourth cam mechanism controls the lid to be opened or closed by an applied force of the sixth force-applying member, wherein the same motor controls the clamps, the heaters, and the lid by the force of each of the force-applying members and by the first to fourth cam mechanisms.
  • a configuration may also be adopted in which at least any of the clamps, the heaters, and the lid is configured by a lever-shaped member that rotationally moves around a rotation support parallel to the optical fiber and the sleeve or is provided at a lever-shaped member.
  • a configuration may also be adopted in which a coil spring is used in the second force-applying member that presses the heaters, the paired right and left clamps, the force-applying member that grasps the optical fiber, and the force-applying member of the lid, and the rotation support is arranged on the same axis as that of the coil spring.
  • a configuration may also be adopted in which the camshaft is arranged among the rotation support that is disposed under a device, the paired right and left clamps that are disposed above a device, the heaters, and the lid.
  • a configuration may also be adopted in which a pressing force that is to be applied to the sleeve by the second force-applying member is set to be greater than a tension that is to be applied to the optical fiber by the first force-applying member, and in a state in which a tension is applied to the optical fiber by the first force-applying member, one of the clamps applying the tension is configured so that a backward movable range in a direction away from the heaters in the longitudinal direction of the optical fiber is ensured, a forward movable range that allows movement to the heater side is ensured, and the clamp moves in a direction in which a tension that is applied to the optical fiber as a result of pressing the sleeve by the heaters and by the second force-applying member is diminished.
  • an optical-fiber-spliced portion reinforcing heating device characterized to include: a pair of right and left clamps that respectively grasp one portion of a coated portion of an optical fiber and the other portion thereof, the coated portion being exposed from a sleeve, where optical fibers are fusion-spliced at which the coated portion is removed and a coating-removed portion of a fusion-spliced portion of the optical fibers is covered with the sleeve; at least two or more heaters that are arranged to face each other so as to sandwich the optical fiber or the sleeve; a first force-applying member that presses at least one of the clamps so as to apply a tension to the optical fiber by use of one of an elastic member and a magnetic member; and a second force-applying member that applies a pressing force to at least one or more of the heaters via the sleeve by use of one of an elastic member and a magnetic member in accordance
  • a configuration may also be adopted in which one of the heaters that are arranged so as to face each other with the sleeve interposed therebetween is movable and the other thereof is fixed.
  • a configuration may also be adopted in which a pressing force that is to be applied to the sleeve by the heaters exceeds the tension of the fusion-spliced portion of the optical fiber under a rupture evaluation test.
  • a configuration may also be adopted in which the heaters have pressing faces that face each other with the sleeve interposed therebetween are arranged in a substantially vertical direction, a tensile strength member is consistently arranged in a substantially downward direction by utilizing a weight of the tensile strength member that is inserted into the inside of the sleeve, and the direction of the sleeve is thereby constant.
  • a configuration may also be adopted in which, after heating of the sleeve is completed, the heaters immediately move separately from the sleeve, heat-transfer to the sleeve is interrupted, and the sleeve is thereby rapidly cooled by introduction of external air into the periphery of the sleeve.
  • a configuration may also be adopted in which, before the optical fiber is grasped, in a state in which one of the clamps moves separately from the heaters by the first force-applying member and comes into contact with a backward movement stopper and a movable range is ensured only in a forward movement direction, in a state in which the paired right and left clamps grasp the optical fiber and a tension is not applied to the optical fiber, immediately after the optical fiber is grasped, or at the time of starting of pressing drive with respect to the sleeve by the heaters, or before or after the time of the starting of the pressing drive, the backward movement stopper is retracted, in a state in which the tension is applied to the optical fiber, the forward movable range of one of the clamps is ensured in addition to the backward movable range, and thereafter the heaters press the sleeve.
  • a configuration may also be adopted in which, before the optical fiber is grasped, from a state in which one of the clamps is separated from the heaters by the first force-applying member and is in contact with a backward movement stopper to a state in which the clamp moves forward until coming into contact with a forward movement stopper and is maintained, in a state in which the paired right and left clamps grasp the optical fiber and a tension is not applied to the optical fiber, immediately after the optical fiber is grasped, or at the time of starting of pressing drive with respect to the sleeve by the heaters, or before or after the time of the starting of the pressing drive, one of the clamps is released from the contacting state with respect to the forward movement stopper and the forward movement stopper is retracted, in a state in which the tension is applied to the optical fiber, a forward movable range is ensured in addition to a backward movable range of one of the clamps, and thereafter, the heaters press the sleeve.
  • a configuration may also be adopted in which, before the optical fiber is grasped, in a state in which an applied force in a backward movement direction away from the heaters is applied to one of the clamps by the first force-applying member and in a state in which one of the clamps is stopped at a position away from an end of a movable range thereof by a third force-applying member formed of an elastic member or a magnetic member which is used to move one of the clamps in a forward movement direction, in a state in which the paired right and left clamps grasp the optical fiber and a tension is not applied to the optical fiber, immediately after the optical fiber is grasped, or at the time of starting of pressing drive with respect to the sleeve by the heaters, or before or after the time of the starting of the pressing drive, in a state in which the paired right and left clamps apply a tension to the optical fiber as a result of decreasing an applied force of one of the clamps in the forward movement direction by the third force-
  • a configuration may also be adopted in which both the paired right and left clamps are movable back and forth in the longitudinal direction of the optical fiber, before the optical fiber is grasped, in a state in which one of the clamps is separated from the heaters by the first force-applying member and is in contact with a backward movement stopper and a movable range is ensured only in the forward movement direction and in a state in which the other of clamps moves forward to the heater side and is stopped before the optical fiber is grasped, in a state in which the paired right and left clamps grasp the optical fiber and a tension is not applied to the optical fiber, the other of clamps starts to move in a backward movement direction away from the heater side, one of the clamps moves in a forward movement direction which is due to a tension transmitted through the optical fiber, movement of the other of clamps is stopped at a position away from an end of a movable range of one of the clamps, therefore, in a state in which the tension is applied to the
  • a configuration may also be adopted in which, before the optical fiber is grasped, in a state in which one of the clamps is separated from heaters by the first force-applying member and is in contact with a backward movement stopper and a movable range is ensured only in the forward movement direction and in a state in which the paired right and left clamps grasp the optical fiber and a tension is not applied to the optical fiber, the heaters press the sleeve by a pressing force by the second force-applying member which is greater than a tension that is to be applied to the optical fiber by the first force-applying member, as a result of moving the optical fiber in a pressing direction which is due to movement of the sleeve or deformation of the sleeve after starting of the press, one of the clamps is drawn to a forward movement direction by a tension due to movement of the optical fiber, one of the clamps is configured so as to be stopped at a position away from an end of a movable range,
  • an optical-fiber-spliced portion reinforcing heating device characterized to include: a pair of right and left clamps that respectively grasp one portion of a coated portion of an optical fiber and the other portion thereof, the coated portion being exposed from a sleeve, where optical fibers are fusion-spliced at which the coated portion is removed and a coating-removed portion of a fusion-spliced portion of the optical fibers is covered with the sleeve; a fifth force-applying member that is provided on at least one of the clamps that are arranged to face each other with the optical fiber interposed therebetween, sandwiches the optical fiber by use of one of an elastic member and a magnetic member, and applies a pressing force thereto; a first cam mechanism that is driven to rotate by controlling a motor; a mechanism that controls to grasp the optical fiber by the clamps and by the pressing force of the fifth force-applying member due to displacement of the first cam mechanism; at least two or more heaters that are arranged to face each
  • a configuration may also be adopted in which, in two or more cam mechanisms used in the first cam mechanism and the third cam mechanism which are rotationally driven by the same motor, a rotating drive force by the drive source is reduced by determining a timing of combining a positive driving that needs a rotary drive torque and a negative driving that receives a torque to be diminished.
  • a configuration may also be adopted in which, in at least one of two or more cam mechanisms used in the first cam mechanism and the third cam mechanism, an auxiliary movable member is disposed on the opposite side of each operation member with the camshaft interposed therebetween, each operation member is coupled to the auxiliary movable member by use of one of an elastic member and a magnetic member, a rotary drive torque of each cam mechanism is reversed from positive driving to negative driving as a result of displacing the auxiliary movable member instead of the operation member in accordance with a motion of each cam mechanism, and the positive driving and the negative driving are thereby combined and diminished in the two or more cam mechanisms.
  • a configuration may also be adopted in which, regarding the paired right and left clamps and the heaters, one of them is movable, and the other of them is fixed.
  • a configuration may also be adopted which includes: a first force-applying member that presses at least one of the clamps so as to apply a tension to the optical fiber by use of one of an elastic member and a magnetic member; a second cam mechanism that is disposed on the camshaft that is the same camshaft as those of the first cam mechanism and the third cam mechanism or is disposed on the other camshaft parallel to the camshaft, and is driven to rotate by controlling a motor; and a mechanism in which displacement of the second cam mechanism controls a tension of the optical fiber which is due to a tension of the first force-applying member of the clamps, wherein the same motor controls the clamps, the tension mechanism, and the heaters by a force of each of the force-applying members and by the first to third cam mechanisms.
  • a configuration may also be adopted which further includes: a position limiting member that is configured of a forward movement stopper or a backward movement stopper, which limits a forward movable range or a backward movable range of at least one of the paired right and left clamps; and a cam mechanism that is to be rotationally driven by the motor control, the cam mechanism being disposed on the same camshaft as those of the first to third cam mechanisms or disposed on the other camshaft parallel to the camshaft, wherein the same motor and the first to third and fifth cam mechanisms control the clamps, the tension mechanism, the heaters, and the position limiting member, and the fifth cam mechanism controls movement of the position limiting member by displacement of the fifth cam mechanism.
  • a configuration may also be adopted which further includes: the first force-applying member that limits a forward movable range or a backward movable range of at least one of the paired right and left clamps or the third force-applying member that applies a tension in an opposite direction relative to the first force-applying member; a sixth cam mechanism that is disposed on the same camshaft as those of the first to third cam mechanisms or disposed on the other camshaft parallel to the camshaft and that is to be rotationally driven by the motor control; and a mechanism in which displacement of the sixth cam mechanism controls an applied force of the first force-applying member or the third force-applying member to be stronger or to be weaker, wherein the same motor controls the clamps, the tension mechanism, the heaters, and the first or the third force-applying members by the first to third and the sixth cam mechanisms.
  • a configuration may also be adopted which includes: a lid that opens and closes the optical-fiber-spliced portion reinforcing heating device; a sixth force-applying member that applies a force of closing the lid thereto by use of one of an elastic member and a magnetic member; a fourth cam mechanism that is disposed on the same camshaft as those of the first to third cam mechanisms or disposed on the other camshaft parallel to the camshaft; and a mechanism in which displacement of the fourth cam mechanism controls opening or closing of the lid by an applied force of the sixth force-applying member, wherein the same motor controls the clamps, the tension mechanism, the heaters, and the lid by the force-applying members and by the first to fourth and sixth cam mechanisms.
  • a configuration may also be adopted in which at least any of the clamps, the tension mechanism, the heaters, and the lid is configured by a lever-shaped member that rotationally moves around a rotation support parallel to the optical fiber and the sleeve or is provided at a lever-shaped member.
  • a configuration may also be adopted in which a coil spring is used in the second force-applying member that presses the heaters, the paired right and left clamps, the force-applying member that grasps the optical fiber, and the force-applying member of the lid, and the rotation support is arranged on the same axis as that of the coil spring.
  • a configuration may also be adopted in which the camshaft is arranged among the rotation support that is disposed under a device, the paired right and left clamps that are disposed above a device, the heaters, and the lid.
  • the invention provides an optical-fiber-spliced portion reinforcing heating device characterized in that a pressing force that is to be applied to the sleeve by the second force-applying member is set to be greater than a tension that is to be applied to the optical fiber by the first force-applying member, and in a state in which a tension is applied to the optical fiber by the first force-applying member, one of the clamps applying the tension is configured so that a backward movable range in a direction away from the heaters in the longitudinal direction of the optical fiber is ensured, a forward movable range that allows movement to the heater side is ensured, and the clamp moves in a direction in which a tension that is applied to the optical fiber as a result of pressing the sleeve by the heaters and by the second force-applying member is diminished.
  • the optical-fiber-spliced portion reinforcing heating device of the invention According to the optical-fiber-spliced portion reinforcing heating device of the invention, a tension that is to be applied to the optical fiber is properly adjusted, and breaking of the optical fiber or degradation in long-term reliability is prevented, and a device is prevented from being larger in size.
  • FIG. 1 shows an example of a fusion splicer including an optical-fiber-spliced portion reinforcing heating device 1 according to the invention.
  • the fusion splicer A shown in FIG. 1 includes: a fusion splicing unit 110 that carries out fusion splicing an optical fiber; and the optical-fiber-spliced portion reinforcing heating device 1 (reinforcing heating device) that is used to heat shrink a reinforcement sleeve that covers the fusion-spliced optical fiber (also refer to FIG. 2 ).
  • the fusion splicer A is provided with an indicator 120 that displays a variety of information or the like for an operator, an operation unit 130 that is used to set, for example, conditions, or the like in addition to the aforementioned reinforcing heating device 1 and the fusion splicing unit 110.
  • a built-in device for example, a means, a controller, or the like, which is used to comprehensively drive them in addition to the reinforcing heating device 1 or the fusion splicing unit 110 are arranged in a substantially cube-shaped body part 101.
  • a plurality of legs 102 (four legs are shown in the drawing as an example and part of them is not shown in the figure) are provided under the body part 101.
  • Various display system such as liquid crystal, organic EL, or electric light may be adopted as the indicator 120.
  • the fusion splicer A is provided with a movable panel 103 at the fore side of the body part 101, and the indicator 120 or the operation unit 130 is disposed above the panel 103.
  • the panel 103 is coupled to the body part 101 via a rotation shaft 101a in the horizontal direction is provided at the upper portion of the body part 101 and can allow the indicator 120 to be directed to an optional direction in a predetermined angle range by movement of the panel 103, which is not particularly shown in the figure.
  • the operator can move the panel 103 so that the indicator 120 is in an easily viewable direction.
  • the reinforcing heating device 1 is arranged at the position which is a rear side of the fusion splicer A, and the fusion splicing unit 110 is disposed in front of the reinforcing heating device 1.
  • the front side the left side in FIG. 3
  • the rear side of the fusion splicer A as seen from the operator is referred to as the back side (the right side in FIG. 3 )
  • the right and the left of the operator are referred to as the right and the left.
  • a sleeve 12 that is heat-shrunk by the reinforcing heating device 1 according to the invention and reinforces an optical fiber spliced portion is provided so as to cover tensile strength members 13A and 13B and an optical fiber 11 (spliced portion 11A) at the position of the spliced portion 11A where the optical fibers 11 are fusion-spliced to each other.
  • the foregoing sleeve 12 is called by various names such as an optical fiber reinforcement member, a heat shrinkable tube, a heat shrinkable sleeve, a reinforcement sleeve, and all of them have a common function.
  • FIG. 5 (a) and (b) for convenience, the same reference numeral is added to all sleeves.
  • an inner tube 12b that is formed of a cylindrical hot melt tube and is in a state of covering the spliced portion 11A of the optical fiber 11 and a tensile strength member 13A that is formed of a cylindrical hard core made of a SUS or the like are arranged inside an outer tube 12a formed of a heat shrinkable tube.
  • an inner tube 12b that is formed of an elliptic cylindrical hot melt tube and is in a state of covering the spliced portion 11A of the optical fiber 11 and a tensile strength member 13B that is formed of a semicircular-column shaped hard core made of glass or the like are arranged inside an outer tube 12a formed of a heat shrinkable tube.
  • an optical fiber is subjected to a tensile test after the optical fibers are spliced, and the reliability thereof (for example, the presence or absence of damages to glass) is thereby evaluated.
  • a glass material having a low degree of elasticity similar to that of an optical fiber is used as tensile strength member; however, it is a little expensive.
  • the outer tube and the inner tube are simply referred to as the sleeve 12 without discriminating them, and additionally drawings are explained is the same way.
  • FIGS. 5 to 17 an optical-fiber-spliced portion reinforcing heating device according to a first embodiment of the invention will be described in details mainly using schematic views shown in FIGS. 5 to 17 .
  • FIGS. 5 to 17 In other cases, the configurations which are not shown in schematic views of FIGS. 5 to 17 will be described using a breakaway view shown in FIG. 4 or the like which is illustrated in a second embodiment according to the invention.
  • the reinforcing heating device 1 includes: a pair of right and left clamps 2 (2A, 2B) grasp one portion of the coated portion exposed from the sleeve 12 and the other portion thereof where the optical fibers 11 are fusion-spliced to each other at which a coated portion is removed and a coating-removed portion and the coated portion of the fusion spliced portion 11A of the optical fiber 11 are covered with the sleeve 12; two heaters 3 (3A, 3B) that are disposed so as to face each other so as to sandwich the optical fiber 11 or the sleeve 12; a first force-applying member 41 that presses at least one of the clamps 2, for example, the clamp 2A shown in the drawing so as to apply a tension to the optical fiber 11 by use of one of an elastic member and a magnetic member; and a second force-applying member 42 that applies a pressing force to at least one or
  • the pressing force with respect to the sleeve 12 by the second force-applying member 42 is set to be greater than the tension to the optical fiber 11 by the first force-applying member 41, in a state in which a tension is applied to the optical fiber 11 by the first force-applying member 41, a backward movable range K is ensured in a direction in which one clamp 2A that applies a tension thereto moves separately from the heaters 3 in the longitudinal direction of the optical fiber 11, and a forward movable range Z is ensured in which the clamp can move to the heater side 3.
  • the clamp 2A is configured to move in the direction in which the tension that is to be applied to the optical fiber 11 as a result of pressing the sleeve 12 by the heaters 3 and by the second force-applying member 42 is diminished.
  • the reinforcing heating device 1 is provided with a lid 10 that carries out opening and closing of the inside of device when the optical fiber 11 is set to this reinforcing heating device.
  • each of the above-mentioned structures is attached to a housing 5 or accommodated in the inside of the housing 5.
  • the sleeve 12 may cover a coating-removed portion and a coated portion of the optical fiber 11 or only cover the coating-removed portion.
  • the clamps 2 (2A, 2B) are a pair of right and left clamps which are constituted of the clamp 2A that grasps one of the optical fiber 11 and the clamp 2B that grasps the other of the optical fiber 11.
  • the clamps 2 are configured to be able to sandwich and grasp (clamp) the optical fiber 11 by use of a force-applying member such as a torsion coil spring or a double torsion spring (for example, a force-applying member of 2a shown in FIG. 34 ) and are placed at both sides of the heaters 3 in the longitudinal direction of the optical fiber 11 shown as an example in the drawing.
  • a force-applying member such as a torsion coil spring or a double torsion spring (for example, a force-applying member of 2a shown in FIG. 34 ) and are placed at both sides of the heaters 3 in the longitudinal direction of the optical fiber 11 shown as an example in the drawing.
  • the clamp 2A that is one of the right and left clamps 2 that are arranged to form a pair thereof is configured to be openable and closable and the clamp 2B that is the other thereof is configured to be the same.
  • one of the clamps 2 slidably moves in the longitudinal direction of the optical fiber 11 and the clamp 2A is configured to be able to apply a tension to the optical fiber 11 by use of the first force-applying member 41 formed of a permanent magnet as an example shown in FIG. 6 or the like.
  • the clamps 2 are provided for preventing the displacement between the position of the sleeve 12 and the position of the spliced portion 11A of the optical fiber 11 in the case where a tension is applied to the optical fiber 11 before heat shrinking is carried out, generally, the clamps are located at two positions, that is, at both sides of the heaters 3.
  • a grasping rubber which is used to directly grasp the optical fiber 11 and is not shown in FIG. 6 or the like is provided on the surface of each of the paired right and left clamps 2A and 2B (refer to FIG. 29 ).
  • the heaters 3 (3A, 3B) is used to press and heat-shrink the sleeve 12 and is generally referred to as a name such as a heater, a heat generation unit, a heat generation source, a heat generation body, a heat source, a heating section, a heating source, a heating member, or the like.
  • the heaters 3 serving as two heaters 3A and 3B are opposed and arranged so as to sandwich the optical fiber 11 or the sleeve 12 and are thereby configured to be able to sandwich and press the sleeve 12 so that one heater 3A is configured to be openable and closable and the heater 3B is fixed.
  • the openable-and-closable heater 3A is configured to press the sleeve 12 in a direction in which the sleeve is sandwiched and pressed by the second force-applying member 42 configured by a double torsion spring as shown in FIG. 4 .
  • the two heaters 3A and 3B are attached to surfaces of heater attachment bases 31A and 31B, respectively.
  • the heaters 3 are not particularly shown in the figure; however, generally, it is preferable to use a plurality of heater circuit patterns.
  • a polyimide film heater that is adhesively attached to a metal sheet as well as a ceramic heater that is adhesively attached to a metal sheet is preferably used as the heaters 3 as an example since the entire surface of them can be subjected to folding.
  • a configuration can be adopted in which, for example, two, three, or more circuit patterns formed of a polyimide film heater are implanted into a plate-shaped metal sheet.
  • a configuration is adopted which sandwiches the sleeve 12 by only driving one heater 3A; however, it is not limited to this, for example, a further powerful pressing force can also be generated by driving both two heaters.
  • the other heater 3B is fixed, as compared with a case where both heaters are openable and closable, it is not necessary for the applied forces of the elastic members to be balanced, particularly when the sleeve 12 is set adjacent to the fixed-side heater 3B, it is possible to minimize the displacement of the optical fiber 11.
  • the displacement of the optical fiber 11 is a substantially half of the diameter of the sleeve 12, substantially, which is a degree of decrease in the diameter due to the heat shrinkage.
  • a drive control of operations of opening and closing the paired right and left clamps 2A and 2B is carried out by a first cam mechanism 71 that is provided in the camshaft 7, and a drive control of one heater 3A that is configured to be openable and closable is carried out by a third cam mechanism 73.
  • a second cam mechanism 72 that is provided in the camshaft 7 is configured to function as a backward movement stopper that restricts a movement of one clamp 2A in a backward direction where the clamp slidably moves in the longitudinal direction of the optical fiber 11.
  • cam mechanism may be simply referred to as a "cam” or “cam member”.
  • one clamp 2A is pressed by the first force-applying member 41 that is configured by an elastic member such as a spring, a rubber, or a sponge, or a magnetic member such as a permanent magnet or an electromagnet in the longitudinal direction of the optical fiber 11 and in the backward movement direction, and is configured to be able to apply a tension to the optical fiber 11.
  • an elastic member such as a spring, a rubber, or a sponge
  • a magnetic member such as a permanent magnet or an electromagnet in the longitudinal direction of the optical fiber 11 and in the backward movement direction
  • the embodiment provides the backward movable range K in which a slack of the optical fiber 11 is removed and the forward movable range Z in which, even in the case where an excessive tension is applied to the optical fiber 11 by pressing one heater 3A, the tension can be absorbed.
  • the paired right and left clamps 2A and 2B or one heater 3A does not carry out grasping, opening, and closing operations or a pressing operation by a driving power that is directly transmitted through the above-mentioned motor 6 or each cam mechanism, and each force-applying member that is configured by an elastic member such as a spring, a rubber, or a sponge, or a magnetic member such as a permanent magnet or an electromagnet presses the optical fiber 11 or the sleeve 12.
  • a double torsion spring is used as the second force-applying member 42 that presses one heater 3A in the example shown in FIG. 4
  • a torsion coil spring is used as a fifth force-applying member 45 that presses the openable-and-closable side of the paired right and left clamps 2A and 2B in the example shown in FIG. 29 .
  • an applied force of the second force-applying member 42 that presses one heater 3A is set to a large pressing force such that, when the sleeve 12 is pressed by the second force-applying member 42 and the heater 3A, the applied force causes the optical fiber 11 to be displaced from the central axis line S (refer to FIG. 12 or the like) of the optical fiber 11 pulled by the first force-applying member 41.
  • the backward movable range K is ensured in a direction in which one clamp 2A that applies a tension thereto moves separately from the heaters 3 in the longitudinal direction of the optical fiber 11, and the forward movable range Z is ensured in which the clamp can move to the heater side 3.
  • the clamp 2A is configured to move in the direction in which the tension that is to be applied to the optical fiber 11 as a result of pressing the sleeve 12 by the heaters 3 and by the second force-applying member 42 is diminished.
  • Steps in the case of heat-shrinking the sleeve 12 in a state of coating the spliced portion 11A of the optical fiber 11 by use of the reinforcing heating device 1 provided with the aforementioned configuration and effects that can diminish and remove a tension will be described below with reference to mainly FIGS. 4 , and 6 to 11 .
  • FIGS. 6 to 11 are schematic views showing the situations as seen from the upper side of the reinforcing heating device 1.
  • the optical fiber 11 is inserted into the sleeve 12, the camshaft 7 is disposed at the lower side of the optical fiber 11 (a deep direction in the drawing).
  • Two heaters 3A and 3B that is used to press the sleeve 12are are disposed at a substantially center portion shown in FIG. 6 , the rear side thereof (the upper side of FIG. 6 ) is driven as an openable-and-closable heater 3A, and the front side thereof (the lower side of FIG. 6 ) is a fixed-side heater 3B.
  • the rear side thereof (the upper side of FIG. 6 ) is driven as an openable-and-closable clamp, and the front side thereof (the lower side of FIG. 6 ) is a fixed clamp.
  • One clamp 2A can slidably move in the longitudinal direction of the optical fiber 11 by a slide mechanism 21 that is configured by, for example, a bearing or the like.
  • the slide mechanism 21 is provided on the clamp that is in front of the clamp 2A, and the configuration in which slide movement is possible is realized while the front and rear sides thereof coordinately move.
  • the first force-applying member 41 is provided by disposing the total four magnets (magnetic member) near the slide mechanism 21 provided at one clamp 2A, the clamp 2A is in a state of being pulled in the left direction in the drawing, that is, in the backward movement direction in which it is possible to apply a tension to the optical fiber 11.
  • this tension is a weak force such as several tens of gf.
  • a strong force such as several hundreds of gf is applied to each of the openable-and-closable side of the paired right and left clamps 2A and 2B and one heater 3A by the fifth force-applying member 45 (refer to FIG. 29 ) and the second force-applying member 42; however, they are in a state of being opened by pressure of the first cam mechanism 71 the third cam mechanism 73 which are provided in the camshaft 7 in FIG. 6 .
  • cam mechanisms such as the first cam mechanism 71, the third cam mechanism 73, and the like are different from each other in configuration.
  • the paired right and left clamps 2A and 2B grasp the optical fiber 11 by a pressing force of several hundreds of gf by the fifth force-applying member 45.
  • a slack of the optical fiber 11, that is, the lowering of the position of the sleeve 12 in the vertical direction thereof, can be removed by slide movement of one clamp 2A in the backward movement direction.
  • the backward movable range K occurs and is ensured in addition to the forward movable range Z in one clamp 2A.
  • one clamp 2A is in a state of being capable of moving back and forth in the longitudinal direction of the optical fiber 11.
  • the camshaft 7 further rotates, the third cam mechanism 73 does not comes into contact with the heater attachment base 31A, and the sleeve 12 is sandwiched between two heaters 3A and 3B that are disposed on surfaces of the heater attachment bases 31A and 31B and is in a state of being pressed by a pressing force of several hundreds of gf by the second force-applying member 42.
  • an operation of heat shrinking the sleeve 12 begins by two heaters 3A and 3B.
  • the sleeve 12 and the optical fiber 11 move in the direction of the other heater 3B while being pressed by a force of several hundreds of gf.
  • one clamp 2A slidably moves in the forward movement direction (the right side in the drawing)
  • a tension that is to be applied to the optical fiber 11 can be maintained constant such as several tens of gf.
  • the amount of time for heating the sleeve 12 in a pressing state as shown in FIG. 10 varies depending on the kinds of sleeve 12.
  • the heating controller performs a control of extension or shortening of the heating time which is due to an outdoor temperature or a battery voltage based on the specified information according to the kinds of sleeve, shrinkage of the sleeve 12 is carried out at an optimal temperature (generally, 200 to 240°C) and for an optimal heating time.
  • an optimal temperature generally, 200 to 240°C
  • the sleeve 12 is separated from the two heaters 3A and 3B and is in a state of being released from pressure.
  • the sleeve 12 is not displaced downward in, for example, the vertically downward direction, the sleeve 12 is held by the heater 3A near a substantially center thereof and can be efficiently heated.
  • one clamp 2A moves in a forward movement direction, and therefore, it is possible to protect the optical fiber 11 while an excessive tension is not applied thereto.
  • a plurality of heater circuits which are configured by a ceramic heater may be implanted into the two heaters 3A and 3B, or a film heater may also be adopted, and furthermore, a constitution using a metal heat-transfer plate to which such heater circuits are attached may also be adopted.
  • a constitution in which a plurality of heater circuits are provided on both two heaters 3A and 3B may also be adopted, or a constitution in which it is provided on only one side thereof may also be adopted.
  • one heater 3A is only driven in the constitution of the embodiment; however, a constitution in which both two heaters 3A and 3B are driven may also be adopted.
  • a method of driving a heater is not particularly limited, for example, a slide drive unit may be adopted, and a rotational slide system in which a fulcrum point is located at the position that is far from the heater portion may also be adopted as an example shown in FIG. 4 or the like.
  • the second force-applying member 42 that presses one heater 3A may use a repulsion force by a magnet (magnetic member) or may use a torsion coil spring or the like as an example shown in FIG. 4 or the like.
  • the electrical current that is applied to the electromagnetic coil is a drive source, and a constitution which controls an applied force by the electromagnet in accordance with the applied current and presses one heater 3A may also be adopted.
  • the slide portion of a slide movable clamp is not particularly limited.
  • the left clamp 2A may also be configured to be only slide-movable or both the paired right and left clamps 2A and 2B may also be configured to be slide-movable.
  • a slide mechanism of the slide movable clamp is not particularly limited.
  • a slide drive unit using an expensive bearing shown in FIG. 6 or the like may also be adopted or a rotational slide system in which a fulcrum point is located at the position that is far from the clamp may also be adopted as an example shown in FIG. 4 or the like.
  • the first force-applying member 41 that presses the slide portion of the slide movable clamp by a force for applying a tension to the optical fiber 11 is not particularly limited.
  • a magnet (magnetic member) as shown in FIG. 6 or the like may also be used, or an elastic member such as a compression coil spring may also be used.
  • the openable-and-closable portions of the paired right and left clamps 2A and 2B is not particularly limited, the front side thereof or the rear side thereof may be only opened and closed, and both the front and back sides may also be opened and closed.
  • the fifth force-applying member 45 (refer to FIG. 29 ) providing a force that grasps the optical fiber 11 at the openable-and-closable sides of the paired right and left clamps 2A and 2B is not particularly limited; and the member may use a repulsion force by a magnet (magnetic member) or may use a torsion coil spring or the like as an example shown in FIG. 4 or the like.
  • each cam mechanism is not also particularly limited to this, as described above, a constitution in which a plurality of cam mechanisms are provided on the same the camshaft 7 and on the same axis may also be adopted, or a constitution in which a plurality of axes are provided using a plurality of camshafts may also be adopted.
  • cam mechanism is not only limited to the above, a forward-and-rearward drive mechanism using, for example, a screw mechanism (including a micrometer), a magnetic force drive mechanism that turns on or off an electromagnet, a drive mechanism using a lever and a solenoid, or the like may be used.
  • a configuration of at least one of the two heaters may be configured to have an L-shape in cross section which shown as an example in the drawing.
  • FIGS. 12 and 13 show the case where a sleeve 12 having a large diameter is provided and the case where a sleeve 12 having a small diameter is provided, respectively.
  • the constitution may be a member that is independent from the heater.
  • FIGS. 14 to 17 that show schematic views (also refer to FIG. 4 ).
  • a reinforcing heating device shown in FIGS. 14 to 17 is different from the aforementioned reinforcing heating device shown in FIGS. 6 to 11 in that a cam mechanism (the second cam mechanism 72) that restricts one clamp 2A from moving in the backward movement direction is not present and in that, since this cam mechanism is not provided, one clamp 2A comes into contact with a stopper 51 in the backward movement direction in an initial state, and a backward movable range is not provided.
  • an L-shaped heater is not shown in the figure (refer to FIGS. 12 and 13 ).
  • the optical fiber 11 having a spliced portion that is covered with the sleeve 12 is inserted between the paired right and left clamps 2A and 2B.
  • the sleeve 12 is supported by the fixed-side heater 93B which is configured to have an L-shape and is not particularly shown in the figure, and the sleeve is held on the surface of the heater at a substantially proper position for heating.
  • the sleeve 12 is deformed after the start of heating by the heaters 93A and 93B, and the optical fiber 11 also moves in accordance with this.
  • a slack of the optical fiber 11 is removed, and one clamp 2A slidably moves in the forward movement direction in a form in which the optical fiber 11 is pulled.
  • the backward movable range K in addition to the forward movable range Z is ensured in one clamp 2A.
  • one clamp 2A since one clamp 2A is in a state of being capable of moving forth and back in the longitudinal direction of the optical fiber 11, a tension can be controlled to be constant in a state in which a slack is not present in the optical fiber 11.
  • the shrinkage of the sleeve 12 is completed as shown in FIG. 17 , the optical fiber 11 is pressed by a force of several hundreds of gf in accordance with the shrinkage of the sleeve 12 and moves to the fixed-side heater 93B; however, as one clamp 2A slidably moves in the forward movement direction, a tension that is applied to the optical fiber 11 can be maintained constant such as several tens of gf.
  • steps of driving and releasing of the openable-and-closable clamp of the paired right and left clamps 2A and 2B and the openable-and-closable heater 93A, a cooling step after heating, or the like are the same as the above, and are omitted here.
  • the pressing force with respect to the sleeve 12 which is due to the two heaters 3A and 3B may be a pressing force exceeding a tension under a rupture evaluation test of the spliced portion 11A at which the optical fiber 11 is fusion-spliced.
  • a strength of the optical fiber fusion splicer portion under the rupture evaluation test is generally approximately 200 gf whereas a pressing force of the second force-applying member is approximately 500 gf.
  • the rupture evaluation test of the spliced portion which is described in the invention and at which optical fibers are fusion-spliced, is a method of measuring a break tensile of the optical fiber spliced portion, generally, is represented as a proof test force, and is used as a common indicator that represents connectivity of an optical fiber fusion splicer.
  • the tension thereof is in the range of 200 to 250 gf (refer to Internet website ;http://www.fujikura.co.jp/products/tele/o_f_splicers/td70005.html, http://www.fujikura.co.jp/products/data/FSM-100-J.pdf, or the like).
  • the pressing faces of the two heaters 3A and 3B which faces each other so as to sandwich the sleeve 12 be arranged in a substantially vertical direction and the tensile strength member 13 be always arranged in a substantially downward direction by utilizing the weight of the tensile strength member 13 that is inserted into the sleeve 12 from the point where the direction of the sleeve 12 can be consistent such that the sleeve is in the position graphically shown in, for example, FIG. 5 (a) and (b) .
  • substantially vertical means that it is substantially vertical to a horizontal plane.
  • the pressing face that is arranged in a substantially vertical direction may be a surface that intersects with, for example, the horizontal plane by an angle of 90° ⁇ 10°.
  • the pressing face may be a surface that intersects with, for example, the horizontal plane at an angle of 90° ⁇ 30°.
  • a backward movement stopper that restricts a movement of the clamp in the backward movement direction may be provided and the backward movement stopper may be configured to be retractable.
  • a backward movement stopper 51 may be used as the backward movement stopper.
  • a heater attachment base 31B shown in FIG. 14 (a) and (b) has a back wall 31Bb that faces a back surface of the clamp 2A (fixed-side).
  • the back wall 31Bb is movable in a front-back direction (horizontal direction in the drawing) with respect to the other portion of the heater attachment base 31B.
  • the backward movement stopper 51 is provided on a front surface of the back wall 31Bb.
  • one clamp 2A moves separately from the heater 3 by the first force-applying member 41 and comes into contact with the backward movement stopper 51, a movable range is ensured only in the forward movement direction.
  • the back wall 31Bb is only necessary to move in the backward movement direction (in a direction away from the clamp 2A).
  • a constitution that allows the backward movement stopper to retract is not limited to the example shown in the drawing.
  • a constitution that allows the backward movement stopper 51 to be removed from the other portion of the heater attachment base 31B may also be adopted.
  • a forward movement stopper that restricts a movement of the clamp 2A in the forward movement direction may be provided and the forward movement stopper may be configured to be retractable.
  • reference numeral 52 represents the forward movement stopper.
  • the heater attachment base 31B shown in FIG. 14 (a) and (c) has a front wall 31Bc on an attachment base 31Ba that faces a front surface of the clamp 2A (fixed side).
  • the front wall 31Bc is movable in a front-back direction (horizontal direction in the drawing) with respect to the other portion of the heater attachment base 31B.
  • the forward movement stopper 52 is provided on a back surface of the front wall 31Bc.
  • the front wall 31Bc is only necessary to move in the forward movement direction (in a direction away from the clamp 2A).
  • the second cam mechanism 72 that is the same as the above may be used as the forward movement stopper, and a structure using the backward movement stopper 51 that is shown in FIGS. 14 to 17 and is formed in the housing 5 may be adopted as the backward movement stopper.
  • Reference numeral 52 represents the forward movement stopper.
  • a configuration that is removed from the other portion of the heater attachment base 31B may be adopted as the forward movement stopper 52.
  • a method of controlling the applied force of the first force-applying member 41 or the third force-applying member that is not shown in the figure to be stronger or weaker in the case of using a magnetic member in each force-applying member, for example, a method of controlling a current value that is to be applied to an electromagnet or a method of moving the position of a permanent magnet.
  • both the paired clamps 2A and 2B which are not particularly shown in the figure are movable back and forth in the longitudinal direction of the optical fiber 11, in a state in which one clamp 2A moves separately from the heater 3 by the first force-applying member 41 and comes into contact with the backward movement stopper (refer to reference numeral 51 show in FIG. 14 or the like) before the optical fiber 11 is grasped, in a state in which a movable range is ensured only in the forward movement direction, and in a state in which the other clamp 2B moves forward to the heater side 3 before the optical fiber 11 is grasped, the paired right and left clamps 2A and 2B grasp the optical fiber 11, and the optical fiber 11 is in a state in which a tension is not applied thereto.
  • the other clamp 2B is started to move in the backward movement direction away from the heater side 3, one clamp 2A moves in a forward movement direction by the tension via the optical fiber 11, the movement of the other clamp 2B is stopped at the position away from the end of the movable range of one clamp 2A, therefore, in a state in which a tension is applied to the optical fiber 11, after the forward movable range Z in addition to the backward movable range K of one clamp 2A is ensured, a constitution may be adopted in which the heater 3 presses the sleeve 12.
  • the heaters 3 press the sleeve 12 by a pressing force by the second force-applying member 42 which is greater than a tension that is to be applied to the optical fiber 11 by the first force-applying member 41.
  • a configuration may also be adopted in which, as a result of moving the optical fiber 11 in a pressing direction which is due to movement of the sleeve 12 or deformation of the sleeve 12 after starting of the press, one clamp 2A is drawn to a forward movement direction by a tension due to movement of the optical fiber 11, one clamp 2A is configured so as to be stopped at a position away from an end of a movable range, therefore, in a state in which a tension is applied to the optical fiber 11 by the first force-applying member 41, a forward movable range Z is ensured in addition to a backward movable range K of one clamp 2A, and thereafter, the heaters 3 heat the sleeve 12.
  • a reinforcing heating device shown in FIG. 34 is different from the reinforcing heating device shown in FIGS. 6 to 11 in that a cam mechanism (the second cam mechanism 72) that restricts one clamp 2A from moving in the backward movement direction is not present, in that a protrusion 150 is formed at the openable-and-closable side 2Ab of the clamp 2A, and in that a control wall 151 is provided on the heater attachment base 31B.
  • the protrusion 150 of the openable-and-closable side 2Ab includes: an extended portion 152 that extends from the rear edge of the openable-and-closable side 2Ab toward the heater attachment base 31B; and an insertion protrusion 153 that protrudes rearward from the back surface of the front end of the extended portion 152.
  • the upper face 153a of the external surface of the insertion protrusion 153 is an inclined surface that lowers as approaching the rear (the left side in the drawing).
  • the control wall 151 is placed upright at the rear edge of the heater attachment base 31B, and a receiving recess 155 that can receive the insertion protrusion 153 is formed on the front surface 151a thereof.
  • the upper face 155a of the inner surface of the receiving recess 155 is an inclined surface that lowers as approaching the rear (the left side in the drawing).
  • the front surface 151a is in contact with the insertion protrusion 153 and thereby restricts a backward movement of the clamp 2A.
  • the reinforcing heating device shown as this example is provided with a force-applying mechanism 41 (first force-applying member) that applies a tension to the optical fiber 11.
  • the force-applying mechanism 41 includes a forward force-applying mechanism 41A and a rearward force-applying mechanism 41B.
  • the forward force-applying mechanism 41A includes force-applying members 41a and 41b which are provided at a front-edge face of a fixed-side 2Aa of the clamp 2A and the attachment base 31Ba of the heater attachment base 31B, respectively.
  • the force-applying members 41a and 41b are magnetic members such as a permanent magnet or an electromagnet and have the same magnetic pole as each other.
  • both the force-applying members 41a and 41b have a north polarity.
  • the rearward force-applying mechanism 41B includes force-applying members 41c and 41d which are provided at the rear-edge face of the fixed-side 2Aa of the clamp 2A and the back wall 31Bb of the heater attachment base 31B, respectively.
  • the force-applying members 41c and 41 d are magnetic members having magnetic poles different from each other.
  • the force-applying member 41c has a north polarity and the force-applying member 41d has a south polarity.
  • the protrusion 150 and the control wall 151 that includes the receiving recess 155 and the front surface 151a constitute a mechanism (a tension mechanism or a tensile control device) that controls the pulling of the optical fiber 11 (and the stopping thereof) by the force-applying mechanism 41 based on an operation of grasping the optical fiber 11 by the clamp 2A.
  • the motor 6 controls the clamp 2A by the first cam mechanism 71 and by a force of the fifth force-applying member 45 and the tension mechanism is controlled by the operation of the clamp 2A.
  • the clamp 2A is in a state of capable of moving back and forth (horizontal direction in the drawing) while the forward movable range Z in addition to the backward movable range K is ensured, and a tension is applied to the optical fiber 11 by the force-applying mechanism 41.
  • the heater attachment base 31A approaches the heater attachment base 31B, the sleeve 12 is sandwiched between the heaters 3A and 3B, and the sleeve 12 is thereby heat-shrunk.
  • the sleeve 12 and the optical fiber 11 move toward the heater 3B in accordance with the shrinkage of the sleeve 12; however, since the clamp 2A slidably moves in the forward movement direction (the right side in the drawing), a tension that is to be applied to the optical fiber 11 is not in large excess.
  • the protrusion 150 moves upward in accordance with the movement of the openable-and-closable side 2Ab, and the insertion protrusion 153 returns to the position at which the backward movement thereof is restricted by the control wall 151.
  • the openable-and-closable side 2Ab is provided with a force-applying member 2a that presses the clamping body 2b clamping the optical fiber 11 in a direction to the clamping body 2b of the fixed-side 2Aa.
  • a reinforcing heating device shown in FIG. 40 is different from the reinforcing heating device shown in FIGS. 6 to 11 in that the second cam mechanism 72 is not present, in that a force-applying mechanism 141 (first force-applying member) is provided, and in that a protrusion 160 that protrudes in a direction of approaching the heater attachment base 31B is formed on the heater attachment base 31A.
  • the force-applying mechanism 141 is used to apply to a tension to the optical fiber 11 and includes a forward force-applying mechanism 141A and a rearward force-applying mechanism 141B.
  • the forward force-applying mechanism 141A includes force-applying members 141a and 141b which are provided at the front-edge face of the fixed-side 2Aa of the clamp 2A and the attachment base 31Ba of the heater attachment base 31B, respectively.
  • the force-applying members 141a and 141b are magnetic members such as a permanent magnet or an electromagnet and have the same magnetic pole as each other.
  • the force-applying members 141a and 141b have a north polarity.
  • the rearward force-applying mechanism 141B includes force-applying members 141c and 141d which are provided at the rear-edge face of the fixed-side 2Aa of the clamp 2A and the back wall 31Bb of the heater attachment base 31B, respectively.
  • the force-applying members 141c and 141 d are magnetic members having the same magnetic pole as each other.
  • the force-applying members 141c and 141 d have a north polarity.
  • the forward movable range Z and the backward movable range K are ensured and the clamp 2A is in a state of capable of moving back and forth (horizontal direction in the drawing); however, the clamp 2A stays at this position due to the repulsive force between the force-applying members 141a and 141b and the repulsive force between the force-applying members 141c and 141 d.
  • a force-applying member 161 is provided at the front end of the protrusion 160.
  • the force-applying member 161 is an magnetic member having the same magnetic pole as that of the force-applying member 141a.
  • the force-applying member 161 has a north polarity.
  • the protrusion 160 constitutes a mechanism (a tension mechanism or a tensile control device) that controls increase and decrease in a degree of the tension of the optical fiber 11 by the force-applying mechanism 41 based on an operation of pressing the optical fiber 11 by the heater 3A.
  • the motor 6 controls the heater 3A by the third cam mechanism 73 and by a force of the second force-applying member 42, the tension mechanism is controlled by the operation of the heater 3A.
  • the force-applying member 161 of the protrusion 160 is located at the position away from the force-applying member 141a of the clamp 2A.
  • the heater attachment base 31A approaches the heater attachment base 31B in accordance with displacement of the third cam mechanism 73 which is due to rotation of the camshaft 7, the force-applying member 161 of the protrusion 160 comes close to the force-applying member 141a of the clamp 2A.
  • the force-applying member 161 Since the force-applying member 161 has the same magnetic pole as that of the force-applying member 141a, a repulsive force that is directed backward (the left side in the drawing) is applied to the force-applying member 141a.
  • the sleeve 12 is sandwiched between the heaters 3A and 3B, and the sleeve 12 is heat-shrunk.
  • the sleeve 12 and the optical fiber 11 move toward the heater 3B in accordance with the shrinkage of the sleeve 12; however, since the clamp 2A slidably moves in the forward movement direction (the right side in the drawing), a tension that is to be applied to the optical fiber 11 is not in large excess.
  • the heater attachment base 31A moves in a direction away from the heater attachment base 31B by the third cam mechanism 73, the sleeve 12 is released, the openable-and-closable side 2Ab of the clamp 2A moves in a direction away from the fixed-side 2Aa by the first cam mechanism 71, and gripping of the optical fiber 11 is released.
  • optical-fiber-spliced portion reinforcing heating device 1 of the first embodiment of the invention described above, when the sleeve 12 is sandwiched between two heaters 3A and 3B and is heat shrunk, breaking of the optical fiber 11 or degradation in long-term reliability thereof is prevented by releasing an excessive tension that is to be applied to the optical fiber 11, and a device is prevented from being larger in size.
  • the reinforcing heating device 1 is characterized to include: a first operation member 81 (a mechanism that operates to sandwich an optical fiber) that operates the first cam mechanism 71 rotationally driven by the motor 6 so as to operate the fifth force-applying member 45 (refer to FIG.
  • a third operation member 83 (a mechanism that operates to sandwich a sleeve) that operates the third cam mechanism 73 that is provided on the camshaft 7 on the same axis as that of the first cam mechanism 71 and is rotationally driven by control of the same motor 6 so as to operate the second force-applying member 42 that is to be displaced in accordance with a motion of the third cam mechanism 73 and so that the second force-applying member presses the sleeve 12 in the direction in which two heaters 3A and 3B sandwich and press by the displacement.
  • an example which is similar to the above-mentioned first embodiment and which includes: the first force-applying member 41 that presses at least one of the clamps 2 in the direction in which a tension is applied to the optical fiber 11; and a second operation member 82 that operates the second cam mechanism 72 that is provided on the camshaft 7 on the same axis as that of the first cam mechanism 71 and is rotationally driven by the motor 6 so as to operate a first force-applying member 71 that is to be displaced in accordance with a motion of the second cam mechanism 72 and so that the first force-applying member applies a tension to the optical fiber 11 by the displacement.
  • the second embodiment will be described with reference to a constitution as an example in which the pressing force with respect to the sleeve 12 by the second force-applying member 42 is greater than the tension to the optical fiber 11 by the first force-applying member 41; in a state in which a tension is applied to the optical fiber 11 by the first force-applying member 41, the backward movable range K in a direction away from the heaters 3 in the longitudinal direction of the optical fiber 11 is ensured and the forward movable range Z in which one clamp 2A that applies a tension can move to the heater side 3 is ensured; and the clamp 2A moves in the direction in which the tension that is to be applied to the optical fiber 11 as a result of pressing the sleeve 12 by the heaters 3 and by the second force-applying member 42 is diminished.
  • each operation member (each operation mechanism) which will be described later in addition to the above-described first operation member 81 or the third operation member 83 will be explained with reference to an example configuration having a lever-shaped member.
  • the reinforcing heating device 1 is different from the above-mentioned first embodiment in that cam mechanisms, each of which will be particularly described later, are provided on the camshaft 7 rotationally driven by the motor 6 and in that each of operations of opening and closing the openable-and-closable side of the paired right and left clamps 2A and 2B, operations of opening and closing one heater 3A, a slide movement of one clamp 2A in the longitudinal direction of the optical fiber 11 (a direction in which a tension is adjusted), and operations of opening and closing the lid 10 is driven and carried out by a corresponding force-applying member by use of the operation member that is displaced in accordance with a motion of the above cam mechanism.
  • cam mechanisms each of which will be particularly described later
  • cam mechanisms which are adopted in the reinforcing heating device according to the embodiment will be described with reference to a breakaway view shown in FIG. 4 , a front view shown in FIG. 23 , and FIG. 24(a) and (b) to FIG. 28 (a) and (b) .
  • camshaft 7 As shown in FIG. 4 , four types and seven cam mechanisms are mounted on one camshaft 7 and are arranged in order from the left side in the drawing as follows.
  • each cam mechanism that is provided on the camshaft 7 of the reinforcing heating device 1 which is described in the embodiment is not limited to a rotation cam-shaped configuration formed shown as an example in the drawing and may include, for example, a so-called spiral-shaped configuration having a contact face that varies in the longitudinal direction of the camshaft.
  • cam mechanism which is described in the invention is not limited to a mechanism shown as an example in the drawing and may include, for example, a structure in which a rotation lever-shaped member is provided on the camshaft.
  • rotation of the motor 6 serving as a drive source is transmitted through a gear wheel mechanism 61 to the camshaft 7 and each cam mechanism.
  • one of two heaters 3A and 3B is configured to be driven by the motor 6 so as to be openable and closable.
  • the two heaters 3A and 3B are configured such that one thereof is movable and driven and the other thereof is fixed, the movable mechanism of the heater, or an elastic member or a magnetic member which presses the heater can be provided only on one of the heaters, and therefore, the device can be reduced in size.
  • the other heater 3B (fixed-side) shown in FIG. 6 or the like is not shown in a breakaway view of FIG. 4 , and one heater 3A serving as an openable-and-closable side is only shown therein. It is only necessary that, the back side or the front side in FIG. 4 is adequately selected and the positional relationship between the two heaters 3A and 3B is adopted in the selected side.
  • FIGS. 29 and 30 are partial breakaway views particularly showing one clamp 2A of the reinforcing heating device 1 shown in FIG. 4 and a surround mechanism thereof.
  • the openable-and-closable side of one clamp 2A is attached to the first operation member 81 and the openable and closable fixed-side thereof is attached to the second operation member 82 serving as a clamp attachment base.
  • the first operation member 81 carries out operations of opening and closing one clamp 2A around a rotation support 81a.
  • the first operation member 81 is driven by the first cam mechanism 71 and carries out operations of opening and closing one clamp 2A as a result of being pressed by the fifth force-applying member 45 formed by a torsion coil spring.
  • a grasping rubber 2b used to directly grasp the optical fiber 11 is provided on one clamp 2A and is also similarly applied to the other clamp 2B which is not shown in FIG. 29 .
  • the paired right and left clamps 2A and 2B are configured to slidably move in the longitudinal direction of the optical fiber 11 around a slide support 82a.
  • the first force-applying member 41 which is used to allow the paired right and left clamps 2A and 2B to move in the backward movement direction so as to apply a tension to the optical fiber 11 and which is formed of a compression coil spring (elastic member) is provided to press the second operation member 82 (and the first operation member 81).
  • the backward movement stopper 51 that restricts a movement of the paired right and left clamps 2A and 2B in the backward movement direction thereof when the optical fiber 11 is grasped by the paired right and left clamps 2A and 2B, is provided at the first operation member 81.
  • the backward movement stopper 51 restricts the movement of the paired right and left clamps 2A and 2B in the backward movement direction thereof by being in contact with the second cam mechanism 72 provided on the camshaft 7.
  • the third operation member 83 can be configured to function as a heater attachment base on which the openable and closable heater 3A is provided and to be driven to rotate around the rotation support 83a.
  • the heater attachment base which is described with reference to FIG. 6 or the like uses a slide movable system.
  • the second point of action at which the heater 3A (heater attachment base) presses a driving body (third cam mechanism) and the point of effort at which the second force-applying member 42 presses the heater 3A (heater attachment base) varies with conditions.
  • At least any of operation members can be configured by a lever-shaped member that rotationally moves around each of the rotation supports parallel to the optical fiber 11 and the rotation shafts of the sleeve 12, and each cam mechanism (the camshaft 7), and it is preferable in that the aforementioned effect is easily obtained.
  • the first, the third, and the fourth operation members 81, 83, and 84 are configured by the lever-shaped member that rotationally moves around the rotation supports parallel to the rotation shafts of the first, the third, and the fourth cam mechanisms 71, 73, and 74, respectively.
  • the camshaft 7 be configured to be arranged among each rotation support that is mentioned that is disposed and is disposed under the device, the paired right and left clamps 2A and 2B that are disposed above the device, the two heaters 3A and 3B, and the lid 10 in that it is possible to further reduce the entire device in size.
  • the second force-applying member 42 that is used to press one heater 3A can be configured by a coil spring that is provided on the rotation support 83a of the third operation member 83 which serves as a heater attachment base shown in FIG. 18 .
  • the third operation member 83 is pressed by the second force-applying member 42 formed of an elastic member or a magnetic member; however, in order to obtain a state in which a variation in a pressing force depending on the third operation member 83 is low, a compression coil spring having an overall length longer than the movable stroke as described above is necessary.
  • a coil spring be used as the second force-applying member 42 pressing two heater units 3A and 3B, the mechanism grasping the optical fiber 11 in the paired right and left clamps 2A and 2B, and the force-applying member of the lid 10 (not shown in the figure) as described above and that the above-mentioned rotation support be on the same axis as that of the coil spring in that it is possible to further reduce the entire device in size.
  • one clamp 2A may also be driven by the same mechanism as in the case of the above-described one heater 3A.
  • the fifth force-applying member 45 formed of an elastic member or a magnetic member can be operated to press the optical fiber in the direction in which the paired right and left clamps 2A and 2B sandwich and grasp the optical fiber 11 via the first operation member 81.
  • protrusions which are not shown in the figure and easily allow finger to pick them are provided on clamps that are disposed at respective right and left sides in the longitudinal direction of the optical fiber, and a space for finger is provided close thereto. Therefore, the clamp was larger in size and the configuration thereof was complicated.
  • gf is required as a pressing force for pressing one heater 3A and a pressing force of several hundreds of gf is also required to grasp the optical fiber 11 by driving the openable-and-closable side of the paired right and left clamps 2A and 2B.
  • FIGS. 19 and 20 are timing charts (graph) that shows timings of operating the first cam mechanism 71 that grasps and drives the openable-and-closable side of the paired right and left clamps 2A and 2B and the third cam mechanism 73 that drives one heater 3A, and the charts describe an action and an effect which compensate a positive driving and a negative driving.
  • the x-axis represents an angle of each cam mechanism and the y-axis represents an amount of extrusion in the direction of each force-applying member (compression coil spring) from the rotational center of each cam mechanism.
  • FIGS. 19 and 20 graphically illustrates the case where, for example, each operation member carries out the above-mentioned rotary motion around each rotation support.
  • Such operation means the process in which the clamps are closed and the grasping operation is carried out.
  • a driving power is not necessary for the cam mechanism, rather than, the force-applying member formed of a compression coil spring facilitates the rotation of the cam mechanism.
  • the force by which the compression coil spring facilitates the rotation of the cam mechanism is 500 gf that is twice the clamping force of 250 gf (the principle of leverage).
  • the second cam mechanism is stopped at the second position of 180°, and heating with respect to the sleeve by two heaters is started.
  • one of the heaters and the openable-and-closable side of the paired right and left clamps are simultaneously carry out a release operation; however, a driving power of 2000 gf is required for the camshaft.
  • the chart shown in FIG. 20 illustrates that a timing (driving power) in the configuration in which the driving power of the heater is inverted in order to reduce an excessive driving power as shown in FIG. 19 .
  • a constitution that uses an auxiliary movable lever may be adopted in order to invert the drive torque.
  • each operation member that carries out the rotary motion around the rotation support as mentioned above will be described below; however, it is not limited to this, it may be applied to a slide drive system.
  • the third operation member 83 produces an action of contracting the compression coil spring 83D, the force of the spring at this time creates the pressing force with respect to the sleeve 12.
  • the configuration shown in a schematic view (diagram) of FIG. 21 may be applied to each of the first operation member 81 and the third operation member 83.
  • a configuration can be adopted in which an auxiliary movable member (refer to reference numeral 83C in FIG. 21 ) is disposed on the opposite side of the first operation member 81 and the third operation member 83 with the camshaft 7 interposed therebetween, each operation member is coupled to the auxiliary movable member via an elastic member or a magnetic member, a positive driving of the rotary drive torque of each cam mechanism is inverted to a negative driving as a result of displacing the auxiliary movable member instead of each operation member in accordance with a motion of each cam mechanism, and therefore, the positive driving and the negative driving are combined and thereby diminished between the first cam mechanism 71 and the third cam mechanism 73.
  • an auxiliary movable member (refer to reference numeral 83C in FIG. 21 ) is disposed on the opposite side of the first operation member 81 and the third operation member 83 with the camshaft 7 interposed therebetween, each operation member is coupled to the auxiliary movable member via an elastic member or a magnetic member, a
  • a cam mechanism be used to drive one heater 3A serving as an openable-and-closable side and that a structure be driven by the third cam mechanism 73 as shown in FIG. 4 , 6 , or the like.
  • a configuration may be adopted which allows the openable-and-closable side of the paired right and left clamps 2A and 2B to be driven to rotate around the rotation support.
  • the paired right and left clamps 2A and 2B which are described with reference to FIG. 6 or the like uses a slide movable system.
  • balance of the first point of action at which the clamps 2 presses the optical fiber 11, the second point of action at which the clamps 2 presses the driving body (the first cam mechanism 71), and the point of effort at which the fifth force-applying member (refer to reference numeral 45 in FIG. 29 ) presses the clamps varies with conditions.
  • a cam mechanism be used to drive the openable-and-closable side of the paired right and left clamps 2A and 2B and that a structure be driven by the first cam mechanism 71 as shown in FIG. 4 , 29 , or the like.
  • the fifth force-applying member 45 that is used to grasp the optical fiber 11 by use of the paired right and left clamps 2A and 2B may also be configured by an elastic member such as a coil spring that is provided at the rotation support 81a of the first operation member 81 serving as a clamp attachment base.
  • the first operation member 81 (clamp attachment base) to which the openable-and-closable side of the paired right and left clamps 2A and 2B is attached as shown in FIG. 4 or 29 is pressed by the fifth force-applying member 45 formed of an elastic member or a magnetic member; however, in order to obtain a state in which a variation in a pressing force depending on the first operation member 81 serving as a clamp attachment base is low, a compression coil spring having an overall length longer than the movable stroke as described above is necessary.
  • a structure can be adopted which allows the openable-and-closable side of the paired right and left clamps 2A and 2B and one heater 3A to be driven by the motor 6 that is the same drive source.
  • each clamp which is the openable-and-closable side is operated by utilizing the motor 6 that serves as a drive source common to one heater 3A, one drive source mounted thereon as a device is only required, and therefore, it is possible to reduce a reinforcing heating device in size.
  • a structure can be adopted in which, as a result of driving the first to third cam mechanisms 71, 72, and 73 by the motor 6 serving as the same drive source, one clamp 2A is operated to apply a tension to the optical fiber 11.
  • FIG. 4 a structure can be adopted which allows the openable-and-closable side of the paired right and left clamps 2A and 2B and one heater 3A to be driven by the respective cam mechanisms that are provided on the common camshaft 7 and on the same axis.
  • the forward movement stopper or the backward movement stopper of one clamp 2A can be driven by the motor 6 serving as a drive source.
  • the second cam mechanism 72 serving as the aforementioned backward movement stopper or a forward movement stopper which is not shown in the figure may be configured to be movable by the motor 6 that is the same drive source.
  • each clamp is operated by utilizing the openable-and-closable side of the paired right and left clamps 2A and 2B or the motor 6 that serves as a drive source common to one heater 3A, one drive source mounted thereon as a device is only required, and therefore, it is possible to reduce a reinforcing heating device in size.
  • FIG. 4 a structure can be adopted which allows the openable-and-closable side of the paired right and left clamps 2A and 2B, one heater 3A, and each stopper to be driven by the respective cam mechanisms that are provided on the common camshaft 7 and on the same axis.
  • the reinforcing heating device of the embodiment since it is only necessary that one camshaft 7 that is properly adjusted to the reinforcing heating device is designed, improvements in reduction in the reinforcing heating device in size can be achieved, it is possible to reduce the size of the reinforcing heating device.
  • a constitution may also be adopted which includes: the lid 10 that is used to open and close the reinforcing heating device; the sixth force-applying member 46 that applies a force of closing the lid 10 by use of one of an elastic member and a magnetic member thereto; the fourth cam mechanism 74 that is provided on the camshaft 7 on the same axis as those of the first to third cam mechanisms 71 to 73 or is disposed on the other camshaft (not shown in the figure) parallel to the camshaft 7; and a fourth operation member 84 that serves as a mechanism operating the applied force of the sixth force-applying member 46 to close the lid 10 in accordance with the displacement of the fourth cam mechanism 74.
  • the same motor 6 can be configured to allow the aforementioned each force-applying member to operate the paired clamps 2A and 2B, the heater 3, and the lid 10 by the first to fourth cam mechanisms 71 to 74.
  • a configuration may also be adopted which carries out operations of opening and closing the lid 10 by displacing the fourth cam mechanism 74 with respect to the fourth operation member 84 via an elastic member such as a spring, a rubber, or a sponge, or a magnetic member such as a permanent magnet, or an electromagnet.
  • an elastic member such as a spring, a rubber, or a sponge
  • a magnetic member such as a permanent magnet, or an electromagnet.
  • the above-described the lid 10 is preferably made of a transparent material so that it is possible to visually check a progress of shrinkage of the sleeve 12 during heating.
  • the paired right and left clamps 2A and 2B, the aforementioned one heater 3A, the backward movement stopper or the forward movement stopper, the lid 10, or the like can be driven by use of the motor 6 as a common drive source and by the respective cam mechanisms that is provided on one camshaft 7.
  • the configuration can be adopted in which, the paired right and left clamps 2A and 2B is driven by the motor 6 serving as a common drive source so as to grasp the optical fiber 11, one clamp 2A is driven so as to apply a tension to the optical fiber 11, furthermore, one heater 3A is driven so as to sandwich and press the sleeve 12, and additionally, the operations of opening and closing the lid 10 are carried out.
  • a semidisc 91A and a photo sensor 91B that are used to detect a rotational position of the camshaft 7 is provided near the third cam mechanism 73.
  • all operation members are configured of a lever-shaped member that is driven to rotate around each rotation support.
  • a torsion coil spring is used as an elastic member 46 that is used to open and close the lid 10 or the fifth force-applying member 45 (refer to FIG. 29 ) that is used to open and close the paired right and left clamps 2A and 2B
  • a double torsion spring is used as the second force-applying member 42 that is used to open and close one heater 3A
  • a compression coil spring is used as the first force-applying member 41 that applies a tension to the optical fiber 11 of one clamp 2A in the longitudinal direction thereof.
  • FIG. 23 is a front view showing the reinforcing heating device 1 according to the embodiment, cross-section lines A-A to E-E shown in FIG. 23 shows cross-sectional positions of cross-sectional views shown in FIG. 24(a) and (b) to FIG. 28 (a) and (b) , respectively.
  • FIG. 24 to FIG. 28 shows states in which each operation is carried out at the position of each portion described below.
  • a semidisc 91A and a photo sensor 91B that are used to detect a rotational position of the camshaft 7 is provided in front of the third cam mechanism 73.
  • each operation member is driven by each cam mechanism that is provided on the camshaft 7, each of the openable-and-closable side of the paired right and left clamps 2A and 2B, one heater 3A, the lid 10, or the like is driven at a predetermined timing.
  • constitution in the aforementioned configuration shown in FIG. 4 or the like, constitution may be adopted which includes a position limiting member that is used to limit the forward movable range Z of (refer to FIG. 6 ) or the backward movable range K (refer to FIG. 6 ) of at least one of the paired right and left clamps 2A and 2B and is configured by a forward movement stopper or a backward movement stopper.
  • This position limiting member limits, for example, the forward movable range or the backward movable range of the fixed-side clamp.
  • This position limiting member has a function of adjusting a tension that is applied to the optical fiber 11 to be in an adequate range.
  • a constitution may also be adopted which includes: the fifth cam mechanism (not shown in the figure) that is disposed on the camshaft 7 on the same axis as those of the first to third cam mechanisms 71 to 73 or is disposed on the other camshaft (not shown in the figure) parallel to the camshaft 7 and is rotationally driven by control of the motor 6; and a mechanism that controls the displacement of the fifth cam mechanism so as to cause the position limiting member configured by the above-described forward movement stopper or the backward movement stopper to move, wherein the same motor 6 drives the clamps 2A and 2B (including a mechanism operates to pull them), the heater 3, and the aforementioned position limiting member by use of the first to third cam mechanisms 71 to 73 and the fifth cam mechanism (not shown in the figure).
  • a constitution may also be adopted which includes: a second cam mechanism that is disposed on the camshaft 7 on the same axis as those of the first and third cam mechanisms 71 and 73 or is disposed on the other camshaft parallel to the camshaft 7; and a mechanism that controls the displacement of the second cam mechanism so as to cause the position limiting member configured by the above-described forward movement stopper or the backward movement stopper to move.
  • the second cam mechanism is rotationally driven by, for example, control of the motor 6.
  • a constitution may also be adopted in which the same motor 6 controls movement of the clamps 2A and 2B and the heater 3 by use of the first cam mechanism 71, the third cam mechanism 73, and the second cam mechanism and by the fifth and second force-applying member, and furthermore, the same motor controls movement of a tension mechanism (a mechanism applies a tension to an optical fiber) by use of the second cam mechanism and by the above-mentioned position limiting member.
  • a tension mechanism a mechanism applies a tension to an optical fiber
  • a constitution may also be adopted which further includes: the first force-applying member 41 that is used to limit the forward movable range Z or the backward movable range K of at least one of the paired right and left clamps 2A and 2B or a third force-applying member (not shown in the figure) that applies a tension in an opposite direction relative to the first force-applying member; the sixth cam mechanism (not shown in the figure) that is disposed on the camshaft 7 on the same axis as those of the first to third cam mechanisms 71 to 73 or is disposed on the other camshaft (not shown in the figure) parallel to the camshaft 7 and is rotationally driven by control of the motor 6; and a mechanism (applied force controller) in which the displacement of the sixth cam mechanism controls the applied force of the first force-applying member 41 or the third force-applying member to be stronger or to be weaker, wherein the same motor 6 controls a mechanism (applied force controller) that controls the clamps 2
  • a constitution may also be adopted which includes: the first force-applying member 41 or the third force-applying member (not shown in the figure) which applies a tension to the optical fiber 11; the above-mentioned second cam mechanism (not shown in the figure); the above-described sixth cam mechanism (not shown in the figure); and an applied force controller that controls the displacement of the sixth cam mechanism to make the applied force of the first force-applying member or the third force-applying member stronger or an applied force controller that controls them to make it weaker, wherein the displacement of the second cam mechanism controls a tensile of the optical fiber 11 which is due to a pulling force of the first force-applying member 41.
  • the same motor 6 control the clamps, the tension mechanism, the heaters, and the applied force controller by use of the first to third cam mechanisms and the sixth cam mechanism.
  • the reinforcing heating device shown in FIG. 45 is different from the reinforcing heating device shown in FIGS. 6 to 11 in that the sixth cam mechanism 76 is provided, the force-applying mechanism 41 (first force-applying member) and force-applying mechanism 43 (third force-applying member) are provided, and a movable rear wall 131 is provided.
  • the sixth cam mechanism 76 is formed in a disk-shape so as to be inclined with respect to the surface perpendicular to the camshaft 7.
  • the sixth cam mechanism 76 is inclined with respect to the surface perpendicular to the camshaft 7, for example, at an angle greater than 0° and less than 90°.
  • the movable rear wall 131 is provided at the position opposed to the rear surface of the clamp 2A (fixed-side) and is movable in the front-back direction (horizontal direction in the drawing).
  • the movable rear wall 131 may be configured to be movable by the slide mechanism 21 or the like.
  • a recess 131b into which a bottom 76a of the sixth cam mechanism 76 is inserted is formed on the upper face 131a of the movable rear wall 131.
  • the movable rear wall 131 is located at the position depending on the position in the front-back direction (horizontal direction in the drawing) of the bottom 76a of the sixth cam mechanism 76.
  • the movable rear wall 131 also comes close to the clamp 2A (refer to FIG. 45 ).
  • the movable rear wall 131 is also located far from the clamp 2A at a large distance (refer to FIG. 46 ).
  • the force-applying mechanism 43 (third force-applying member) includes force-applying members 43a and 43b which are provided at the rear-edge face of the fixed-side 2Aa of the clamp 2A and the front surface of the movable rear wall 131, respectively.
  • the force-applying members 43a and 43b are magnetic members such as a permanent magnet or an electromagnet and have the same magnetic pole as each other.
  • both the force-applying members 43a and 43b have a south polarity.
  • the force-applying mechanism 43 presses the clamp 2A by a repulsive force between the force-applying members 43a and 43b and adjusts a tension to be applied to the optical fiber 11.
  • the force-applying mechanism 41 (first force-applying member) includes force-applying members 41a and 41b which are provided at a front-edge face of a fixed-side 2Aa of the clamp 2A and the heater attachment base 31B, respectively.
  • the force-applying members 41a and 41b have the same magnetic pole as each other.
  • Both the force-applying members 41a and 41b shown in the drawing as an example have a north polarity.
  • the sixth cam mechanism 76 is inclined so as to have an orientation such that, as it approaches the movable rear wall 131, it approaches the clamp 2A, the bottom 76a is located near the clamp 2A.
  • the movable rear wall 131 is located adjacent to the clamp 2A.
  • a force in a direction away from the heater attachment base 31B (the left direction in the drawing) is applied to the clamp 2A due to a repulsive force between the force-applying members 41a and 41b.
  • the first cam mechanism 71 is displaced in accordance with the rotation of the camshaft 7, the openable-and-closable side 2Ab of the clamp 2A moves in a direction of approaching the fixed-side 2Aa, and the openable-and-closable side 2Ab and the fixed-side 2Aa thereby grasps the optical fiber 11.
  • the heater attachment base 31A comes close to the heater attachment base 31B in accordance with the displacement of the third cam mechanism 73, the sleeve 12 is sandwiched between the heaters 3A and 3B, and the sleeve 12 is heat-shrunk.
  • the sixth cam mechanism 76 is inclined so as to have an orientation such that, as it approaches the movable rear wall 131, it is farther from the clamp 2A, the movable rear wall 131 moves to the position far from the clamp 2A at a large distance.
  • the first force-applying member 41 may have a function of limiting, for example, the forward movable range Z or the backward movable range K the clamp of the fixed-side (or openable-and-closable side) of at least one of the paired right and left clamps 2A and 2B.
  • the second cam mechanism may be disposed on, for example, the camshaft 7 on the same axis as those of the first and third cam mechanisms 71 and 73 or is disposed on the other camshaft (not shown in the figure) parallel to the camshaft 7.
  • the second cam mechanism may have a structure that is rotationally driven by control of the motor 6.
  • a constitution may also be adopted in which the same motor 6 controls movement of the clamps 2A and 2B and the heater 3 by use of the first and third cam mechanisms 71 and 73, and the second cam mechanism and by the fifth and second force-applying member, and furthermore, the same motor controls movement of a tension mechanism (a mechanism applies a tension to an optical fiber) by use of the second cam mechanism and by the first force-applying member or the third force-applying member.
  • a tension mechanism a mechanism applies a tension to an optical fiber
  • a constitution may also be adopted which further limits a forward movable range or a backward movable range of at least one of the paired right and left clamps.
  • optical-fiber-spliced portion reinforcing heating device of the second embodiment since a constitution is provided which utilizes the motor 6 that is the same drive source and drives the paired right and left clamps 2A and 2B, one heater 3A, the lid 10, or the like by each cam mechanism that is provided on the same axis, it is possible to reduce the entire reinforcing heating device in size.
  • the fifth force-applying member 45 is used in both the paired clamps 2A and 2B; however, the fifth force-applying member 45 may be used in only one of the clamps 2A and 2B (that is, one side).
  • two heaters 3 (3A, 3B) are used; however, the number of heaters may be three or more.
  • a ⁇ fusion splicer (optical fiber fusion splicer), 1 ⁇ optical-fiber-spliced portion reinforcing heating device, 2 (2A, 2B) ⁇ clamp portion (a pair of right and left clamps), 2A ⁇ one of clamps, 2B ⁇ the other of clamps, 3 (3A, 3B) ⁇ heather (two heaters), 3A ⁇ one of the heaters, 3B...the other of the heaters, 41...first force-applying member, 42... second force-applying member, 45...fifth force-applying member, 46...
  • sixth force-applying member 6...motor (drive source), 7...camshaft, 71...first cam mechanism, 72...second cam mechanism, 73...third cam mechanism, 74...fourth cam mechanism, 81...first operation member, 82...second operation member, 83...third operation member, 84...fourth operation member, 81a, 83a...rotation support, 82a...slide support, 10...lid, 11...optical fiber, 12 (12a, 12b)...sleeve, 13...tensile strength member, Z...forward movable range, K...backward movable range

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Claims (12)

  1. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) comprenant :
    une paire de pinces (2A, 2B) qui sont agencées pour saisir respectivement une portion d'une portion revêtue d'une fibre optique (11) et l'autre portion de celle-ci, la portion revêtue étant exposée depuis un manchon (12), la fibre optique (11) étant configurée pour avoir la portion revêtue et une portion à épissure par fusion ayant une portion sans revêtement, qui sont couvertes par les manchons (12) ;
    un cinquième organe d'application de force (45) qui est prévu sur au moins l'une des pinces appariées (2A, 2B) et qui est agencé pour appliquer une force d'appui enserrant la fibre optique (11) ;
    un premier mécanisme de came (71) qui est configuré pour être déplacé en étant entraîné en rotation par une commande de moteur et qui commande ainsi la saisie de la fibre optique (11) en raison du déplacement ;
    au moins deux éléments chauffants (3) ou plus qui sont agencés pour être face l'un à l'autre de façon à enserrer le manchon (12) ;
    un deuxième organe d'application de force (42) qui est agencé pour appliquer une force d'appui à au moins l'un ou plusieurs des deux éléments chauffants (3) ou plus avec le manchon (12) interposé entre eux ; et
    un troisième mécanisme de came (73) qui est disposé sur un arbre à cames (7) sur lequel le premier mécanisme de came (71) est prévu ou est disposé sur un autre arbre à cames parallèle à l'arbre à cames (7), est configuré pour être déplacé en étant entraîné en rotation par la commande de moteur, et agencé ainsi pour commander les éléments chauffants (3) afin d'appuyer sur le manchon (12) en raison du déplacement, dans lequel le même moteur (6) est agencé pour commander une force de chacun des organes d'application de force par rapport aux pinces (2A, 2B) et les éléments chauffants (3) par les premier et troisième mécanismes de came (71, 73).
  2. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) selon la revendication 1, dans lequel
    dans deux mécanismes de came ou plus utilisés dans le premier mécanisme de came (71) et le troisième mécanisme de came (73) qui sont agencés pour être entraînés en rotation par le même moteur (6), une force d'entraînement en rotation par le moteur (6) est agencée pour être réduite en déterminant une synchronisation de combinaison d'un entraînement positif qui a besoin d'un couple d'entraînement rotatif et d'un entraînement négatif qui reçoit un couple à diminuer.
  3. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) selon la revendication 2, dans lequel
    dans au moins l'un de deux mécanismes de came ou plus utilisés dans le premier mécanisme de came (71) et le troisième mécanisme de came (73), un organe mobile auxiliaire (83C) est disposé sur le côté opposé de chaque organe de fonctionnement avec l'arbre à cames (7) interposé entre eux, chaque organe de fonctionnement est couplé à l'organe mobile auxiliaire (83C) grâce à l'utilisation de l'un parmi un organe élastique et un organe magnétique, un couple d'entraînement rotatif de chaque mécanisme de came est agencé pour être inversé d'un entraînement positif à un entraînement négatif suite au déplacement de l'organe mobile auxiliaire (83C) au lieu de chaque organe de fonctionnement conformément à un mouvement de chaque mécanisme de came, et l'entraînement positif et l'entraînement négatif sont ainsi combinés et diminués dans les deux mécanismes de came ou plus.
  4. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) selon l'une quelconque des revendications 1 à 3, dans lequel
    concernant les pinces appariées (2A, 2B) et les éléments chauffants (3), l'un d'entre eux est mobile, et l'autre d'entre eux est fixe.
  5. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) selon l'une quelconque des revendications 1 à 4, comprenant en outre :
    un premier organe d'application de force (41) qui est agencé pour appuyer sur au moins l'une des pinces (2A, 2B) de façon à appliquer une tension à la fibre optique (11) grâce à l'utilisation de l'un parmi un organe élastique et un organe magnétique ; et
    un mécanisme qui est agencé pour commander une traction de la fibre optique (11), qui est due à des tensions des pinces (2A, 2B) par le premier organe d'application de force (41), d'après un fonctionnement de saisie de la fibre optique (11) par les pinces (2A, 2B) ou un fonctionnement d'appui du manchon (12) par les éléments chauffants (3), dans lequel
    le même moteur (6) est agencé pour commander le mécanisme de tension par un fonctionnement des pinces (2A, 2B) commandées ou des éléments chauffants (3) commandés.
  6. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) selon l'une quelconque des revendications 1 à 4, comprenant en outre :
    un premier organe d'application de force (41) qui est agencé pour appuyer sur au moins l'une des pinces (2A, 2B) de façon à appliquer une tension à la fibre optique (11) grâce à l'utilisation de l'un parmi un organe élastique et un organe magnétique ;
    un organe de limitation de position qui est configuré par une butée de mouvement vers l'avant (52) ou une butée de mouvement vers l'arrière (51), qui limite une plage mobile vers l'avant (Z) ou une plage mobile vers l'arrière (K) d'au moins l'une des pinces appariées (2A, 2B) ;
    un deuxième mécanisme de came (72) qui est agencé pour être entraîné en rotation par la commande de moteur, le deuxième mécanisme de came (72) étant disposé sur le même arbre à cames (7) que ceux des premier et troisième mécanismes de came (71, 73) ou disposé sur l'autre arbre à cames parallèle à l'arbre à cames (7), le deuxième mécanisme de came (72) servant de mécanisme de came supplémentaire ;
    un mécanisme dans lequel un déplacement du deuxième mécanisme de came (72) commande une traction de la fibre optique (11), qui est due à des tensions des pinces (2A, 2B) par le premier organe d'application de force (41) ; et
    un mécanisme dans lequel un déplacement du deuxième mécanisme de came (72) commande un mouvement de l'élément de limitation de position.
  7. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) selon l'une quelconque des revendications 1 à 4, comprenant en outre :
    un premier organe d'application de force (41) qui est agencé pour appuyer sur au moins l'une des pinces (2A, 2B) de façon à appliquer une tension à la fibre optique (11) grâce à l'utilisation de l'un parmi un organe élastique et un organe magnétique ;
    un troisième organe d'application de force qui est agencé pour appuyer et pour appliquer une tension dans une direction opposée par rapport au premier organe d'application de force (41) ;
    un sixième mécanisme de came qui est agencé pour être entraîné en rotation par la commande de moteur, le deuxième mécanisme de came (72) étant disposé sur le même arbre à cames (7) que ceux des premier et troisième mécanismes de came (71, 73) ou disposé sur l'autre arbre à cames parallèle à l'arbre à cames (7), le sixième mécanisme de came servant de mécanisme de came supplémentaire ; et
    un mécanisme dans lequel un déplacement du sixième mécanisme de came commande une force appliquée du premier organe d'application de force (41) ou du troisième organe d'application de force, dans lequel
    chacun des premier (41) et troisième organes d'application de force est agencé pour appuyer sur au moins l'une des pinces (2A, 2B) de façon à appliquer une tension à la fibre optique (11) grâce à l'utilisation de l'un parmi un organe élastique et un organe magnétique, et
    le même moteur (6) est agencé pour commander les pinces (2A, 2B), les éléments chauffants (3), et le dispositif de commande de force appliquée par les premier (71), troisième (73), et sixième mécanismes de came.
  8. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) selon la revendication 6 ou la revendication 7, comprenant en outre :
    un couvercle (10) qui est agencé pour ouvrir et fermer le dispositif chauffant de renfort de portion à épissure de fibre optique (1) ;
    un sixième organe d'application de force (46) qui est agencé pour appliquer une force de fermeture du couvercle (10) à celui-ci grâce à l'utilisation de l'un parmi un organe élastique et un organe magnétique ;
    un quatrième mécanisme de came (74) qui est disposé sur le même arbre à cames (7) que ceux des premier et troisième mécanismes de came (71, 73) ou disposé sur l'autre arbre à cames parallèle à l'arbre à cames (7) ; et
    un mécanisme dans lequel un déplacement du quatrième mécanisme de came (74) est agencé pour commander l'ouverture ou la fermeture du couvercle (10) par une force appliquée du sixième organe d'application de force (46), dans lequel le même moteur (6) est agencé pour commander les pinces (2A, 2B), les éléments chauffants (3), et le couvercle (10) par la force de chacun des organes d'application de force et par le premier mécanisme de came (71), le troisième mécanisme de came (73), le quatrième mécanisme de came (74), et le mécanisme de came supplémentaire.
  9. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) selon la revendication 8, dans lequel
    au moins l'un quelconque des pinces (2A, 2B), des éléments chauffants (3) et du couvercle (10) est configuré par un organe en forme de levier qui se déplace en rotation autour d'un support de rotation (81a, 83a) parallèle à la fibre optique (11) et au manchon (12) ou est fourni au niveau d'un organe en forme de levier.
  10. Dispositif chauffant de renfort de portion à épissure de fibre optique (1) selon la revendication 9, dans lequel
    un ressort hélicoïdal est utilisé dans le deuxième organe d'application de force (42) qui est agencé pour appuyer sur les éléments chauffants (3), les pinces appariées, l'organe d'application de force qui saisit la fibre optique (11), et l'organe d'application de force du couvercle (10), et
    le support de rotation (81a, 83a) est agencé sur le même axe que celui du ressort hélicoïdal.
  11. Dispositif chauffant de renfort de portion à épissure de fibre optique selon l'une quelconque des revendications 8 à 10, dans lequel
    l'arbre à cames (7) est agencé entre le support de rotation (81a, 83a) qui est disposé sous un dispositif, les pinces appariées (2A, 2B) qui sont disposées au-dessus d'un dispositif, les éléments chauffants (3) et le couvercle (10).
  12. Dispositif chauffant de renfort de portion à épissure de fibre optique selon l'une quelconque des revendications 5 à 11, dans lequel
    une force d'appui qui est agencée pour être appliquée au manchon (12) par le deuxième organe d'application de force (42) est réglée pour être plus importante qu'une tension qui est agencée pour être appliquée à la fibre optique (11) par le premier organe d'application de force (41), et
    dans un état dans lequel une tension est agencée pour être appliquée à la fibre optique (11) par le premier organe d'application de force (41), l'une des pinces (2A, 2B) appliquant la tension est configurée de sorte qu'une plage mobile vers l'arrière (K) dans une direction à l'opposé des éléments chauffants (3) dans la direction longitudinale de la fibre optique (11) est garantie, une plage mobile vers l'avant (Z) qui permet un mouvement vers le côté de l'élément chauffant (3) est garantie, et la pince (2A, 2B) est agencée pour se déplacer dans une direction dans laquelle une tension qui est appliquée à la fibre optique (11) suite à l'appui du manchon (12) par les éléments chauffants (3) et par le deuxième organe d'application de force (42) est diminuée.
EP14776315.5A 2013-03-25 2014-03-25 Dispositif de chauffage de renfort pour partie de connexion de fibre optique Active EP2884318B1 (fr)

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JP2013063014 2013-03-25
PCT/JP2014/058370 WO2014157254A1 (fr) 2013-03-25 2014-03-25 Dispositif de chauffage de renfort pour partie de connexion de fibre optique

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Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5702507B2 (ja) 2013-03-25 2015-04-15 株式会社フジクラ 光ファイバ接続部補強加熱装置
US10663666B2 (en) * 2013-12-05 2020-05-26 United States Of America As Represented By The Secretary Of The Navy Flexible, low profile kink resistant fiber optic splice tension sleeve
JP5705365B1 (ja) * 2014-11-10 2015-04-22 株式会社フジクラ 光ファイバ把持装置
US9541710B2 (en) 2015-01-30 2017-01-10 Fujikura Ltd. Optical fiber holding device
USD825630S1 (en) * 2016-03-30 2018-08-14 Inno Instrument (China) .Inc Optical fiber fusion splicer
JP6628247B2 (ja) * 2016-05-19 2020-01-08 Ｓｅｉオプティフロンティア株式会社 光ファイバ融着接続部の補強装置およびそれを備えた融着接続機
JP6154973B1 (ja) 2017-02-24 2017-06-28 株式会社フジクラ 被覆除去装置
CN107045159A (zh) * 2017-06-08 2017-08-15 诺仪器（中国）有限公司 光纤熔接机用新型高效加热槽及光纤熔接机
WO2019067850A1 (fr) 2017-09-29 2019-04-04 Commscope Technologies Llc Ensemble chauffant conducteur pour traitement rapide de connecteurs pour fibres optiques ; et procédés
CN107966119B (zh) * 2017-11-29 2019-11-12 江苏锡沂高新区科技发展有限公司 一种环绕式电缆损伤检测装置
CN109031528A (zh) * 2018-08-02 2018-12-18 北京信维科技股份有限公司 一种光纤熔接机多合一夹具
KR20210069638A (ko) * 2018-10-02 2021-06-11 스미토모 덴코 옵티프론티어 가부시키가이샤 광파이버 융착 접속부의 보강 장치 및 그를 구비한 융착 접속기
US10641960B1 (en) * 2018-10-04 2020-05-05 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for assembling a fiber optic splice
JPWO2020158240A1 (ja) * 2019-01-30 2021-12-02 住友電工オプティフロンティア株式会社 補強用スリーブ加熱装置及び融着接続機
CN113892048A (zh) * 2019-06-05 2022-01-04 住友电工光学前沿株式会社 熔接连接系统、服务器、熔接连接机、信息终端及项目管理方法
US11327231B2 (en) * 2019-12-05 2022-05-10 Commscope Technologies Llc Flexible splice protector assembly and method for preparing same
WO2021192326A1 (fr) * 2020-03-24 2021-09-30 株式会社フジクラ Gabarit pour dispositif d'épissage par fusion et procédé de chauffage
JP2022110946A (ja) * 2021-01-19 2022-07-29 古河電気工業株式会社 補強スリーブ及び光ファイバ接続部の補強構造
KR102558712B1 (ko) * 2022-11-25 2023-07-26 유씨엘스위프트(주) 광섬유 슬리브 가열장치

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62158405A (ja) 1985-12-28 1987-07-14 小橋工業株式会社 ロ−タリ農作業機
JPS62158405U (fr) * 1986-03-28 1987-10-08
JPH0423211Y2 (fr) * 1987-06-04 1992-05-29
JPH02193105A (ja) * 1989-01-23 1990-07-30 Fujikura Ltd 光ファイバ接続部補強器
JPH03293594A (ja) 1990-04-11 1991-12-25 Hitachi Ltd 自動遠隔操作補助装置
JPH04165375A (ja) 1990-10-29 1992-06-11 Kyocera Corp カラー画像形成装置
JP3337874B2 (ja) * 1995-07-06 2002-10-28 古河電気工業株式会社 光ファイバ加熱補強装置
JPH10332979A (ja) 1997-05-30 1998-12-18 Fujikura Ltd 光ファイバ接続部補強用熱収縮スリーブの加熱装置及び加熱方法
JP3245850B2 (ja) 1997-08-25 2002-01-15 住友電気工業株式会社 光ファイバ心線の被覆除去装置
JP2000321462A (ja) * 1999-05-11 2000-11-24 Fujikura Ltd 線材補強用スリーブの加熱方法
JP3293594B2 (ja) 1999-06-29 2002-06-17 住友電気工業株式会社 光ファイバ融着接続部の保護部材加熱装置及び加熱方法
JP2004042317A (ja) * 2002-07-09 2004-02-12 Fujikura Ltd 熱収縮スリーブの加熱器
JP2004325623A (ja) * 2003-04-23 2004-11-18 Sumitomo Electric Ind Ltd 光ファイバ融着接続部補強装置及び融着接続部補強方法
JP4165375B2 (ja) 2003-11-13 2008-10-15 住友電気工業株式会社 光ファイバ補強部材の加熱処理装置及び加熱処理方法並びに光ファイバ融着接続装置
US7212718B2 (en) 2003-11-12 2007-05-01 Sumitomo Electric Industries, Ltd. Apparatus and method for heat-treatment of optical fiber reinforcing member and optical fiber fusion splicing apparatus
JP2005321644A (ja) 2004-05-10 2005-11-17 Fujikura Ltd 光ファイバの補強スリーブ加熱装置
WO2006132182A1 (fr) 2005-06-09 2006-12-14 Sumitomo Electric Industries, Ltd. Dispositif de renfort par chauffage, dispositif de raccordement par fusion comprenant le dispositif de renfort par chauffage et procédé de raccordement par fusion
AU2006235914B8 (en) * 2005-06-09 2009-01-22 Sumitomo Electric Industries, Ltd. Splice protection heater, fusion splicer including the splice protection heater, and fusion splicing method
JP4161984B2 (ja) * 2005-06-09 2008-10-08 住友電気工業株式会社 光ファイバの加熱補強処理装置及び光ファイバ融着接続装置並びに融着接続方法
JP2007310080A (ja) * 2006-05-17 2007-11-29 Sumitomo Electric Ind Ltd 光ファイバ補強処理装置及び補強処理方法
JP5276483B2 (ja) * 2009-03-11 2013-08-28 住友電気工業株式会社 接続部の補強方法及び補強構造
JP5053318B2 (ja) 2009-03-13 2012-10-17 古河電気工業株式会社 熱収縮性補強スリーブの加熱装置及び融着接続機
DK2502832T3 (en) 2009-03-26 2015-11-09 Nestec Sa Clamping jaw carrier for a bag loader
JP5224385B2 (ja) 2009-04-10 2013-07-03 古河電気工業株式会社 光ファイバ補強部材の加熱処理装置及び加熱処理方法
JP5309403B2 (ja) * 2010-12-24 2013-10-09 Ｓｅｉオプティフロンティア株式会社 光ファイバ補強用加熱器及び光ファイバ融着接続装置
CN202548383U (zh) * 2012-05-12 2012-11-21 刘荣伟 热熔型光纤活动连接器
JP5702507B2 (ja) * 2013-03-25 2015-04-15 株式会社フジクラ 光ファイバ接続部補強加熱装置

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EP2866066B1 (fr) 2017-11-22
US20150198765A1 (en) 2015-07-16
EP2884318A4 (fr) 2016-04-20
KR101692882B1 (ko) 2017-01-04
US9448362B2 (en) 2016-09-20
WO2014157254A1 (fr) 2014-10-02
JP5663702B1 (ja) 2015-02-04
KR101603746B1 (ko) 2016-03-15
JPWO2014157255A1 (ja) 2017-02-16
US20150185419A1 (en) 2015-07-02
US9274281B2 (en) 2016-03-01
CN104718477A (zh) 2015-06-17
KR20150046314A (ko) 2015-04-29
KR20150018893A (ko) 2015-02-24
EP2866066A1 (fr) 2015-04-29
CN104428705A (zh) 2015-03-18
WO2014157255A1 (fr) 2014-10-02
CN104718477B (zh) 2018-10-26
CN104428705B (zh) 2016-01-20
US20160131840A1 (en) 2016-05-12
US9429708B2 (en) 2016-08-30
US9465167B2 (en) 2016-10-11
EP2866066A4 (fr) 2016-03-23
EP2884318A1 (fr) 2015-06-17
JP5702507B2 (ja) 2015-04-15
JPWO2014157254A1 (ja) 2017-02-16
US20160202416A1 (en) 2016-07-14

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